Mass comparison (Redirected from Mass lexical comparison)

Mass comparison is a method developed by Joseph Greenberg to determine the level of genetic relatedness between languages. It is now usually called multilateral comparison. Mass comparison has been referred to as a "methodological deception" and is rejected by most linguists, and its continued use is primarily restricted to fringe linguistics. (Campbell 2001, p. 45)

Some of the top-level relationships Greenberg named are now generally accepted thanks to analysis with other, more widely accepted linguistic techniques, though they had already been posited by others (e.g. Afro-Asiatic and Niger–Congo). Others are accepted by many though disputed by some prominent specialists (e.g. Nilo-Saharan), while others are almost universally rejected (e.g. Eurasiatic, Khoisan and Amerind).

Methodology

The idea of mass comparison method is that a group of languages is related when they show numerous resemblances in vocabulary, including pronouns, and morphemes, forming an interlocking pattern common to the group. Unlike the comparative method, mass comparison does not require any regular or systematic correspondences between the languages compared; all that is required is an impressionistic feeling of similarity. Greenberg does not establish a clear standard for determining relatedness; he does not set a standard for what he considers a "resemblance" or how many resemblances are needed to prove relationship.

Mass comparison is done by setting up a table of basic vocabulary items and their forms in the languages to be compared for resemblances. The table can also include common morphemes. The following table was used by Greenberg (1957, p. 41) to illustrate the technique. It shows the forms of six items of basic vocabulary in nine different languages, identified by letters.

A B C D E F G H I
Head kar kar se kal tu tu to fi pi
Eye min ku min miŋ min min idi iri
Nose tor tör ni tol was waš was ik am
One mit kan kan kaŋ ha kan kεn he čak
Two ni ta ne kil ne ni ne gum gun
Blood kur sem sem šam i sem sem fik pix

According to Greenberg, basic relationships can be determined without any experience in the case of languages that are fairly closely related, though knowledge of probable paths of sound change acquired through typology allows one to go farther faster. For instance, the path p > f is extremely frequent, but the path f > p is much less so, enabling one to hypothesize that fi : pi and fik : pix are indeed related and go back to protoform *pi and *pik/x. Similarly, while knowledge that k > x is extremely frequent, x > k is much less so enables one to choose *pik over *pix. Thus, according to Greenberg (2005:318), phonological considerations come into play from the very beginning, even though mass comparison does not attempt to produce reconstructions of protolanguages as these belong to a later phase of study. The tables used in actual mass comparison involve much larger numbers of items and languages. The items included may be either lexical, such as 'hand', 'sky', and 'go', or morphological, such as PLURAL and MASCULINE (Ruhlen 1987, p. 120). For Greenberg, the results achieved through mass comparison approached certainty (Greenberg 1957, p. 39): "The presence of fundamental vocabulary resemblances and resemblances in items with grammatical function, particularly if recurrent through a number of languages, is a sure indication of genetic relationship."

Relation to the comparative method

As a tool for identifying genetic relationships between languages, mass comparison is an alternative to the comparative method. Proponents of mass comparison, such as Greenberg, claim that the comparative method is unnecessary to identify genetic relationships; furthermore, they claim that it can only be used once relationships are identified using mass comparison, making mass comparison the "first step" in determining relationships (1957:44). This contrasts with mainstream comparative linguistics, which relies on the comparative method to aid in identifying genetic relationships; specifically, it involves comparing data from two or more languages. If sets of recurrent sound correspondences are found, the languages are most likely related; if further investigation confirms the potential relationship, reconstructed ancestral forms can be set up using the collated sound correspondences.

However, Greenberg did not entirely disavow the comparative method; he stated that "once we have a well-established stock I go about comparing and reconstructing just like anyone else, as can be seen in my various contributions to historical linguistics" (1990, quoted in Ruhlen 1994:285) and accused mainstream linguists of spreading "the strange and widely disseminated notion that I seek to replace the comparative method with a new and strange invention of my own" (2002:2). Earlier in his career, before he fully developed mass comparison, he even stated that his methodology did not "conflict in any fashion with the traditional comparative method" (1957:44). However, Greenberg sees the comparative method as playing no role in determining relationships, significantly reducing its importance compared to traditional methods of linguistic comparison. In effect, his approach of mass comparison sidelined the comparative method with a "new and strange invention of his own".

Reflecting the methodological empiricism also present in his typological work, he viewed facts as of greater weight than their interpretations, stating (1957:45):

[R]econstruction of an original sound system has the status of an explanatory theory to account for etymologies already strong on other grounds. Between the *vaida of Bopp and the *γwoidxe of Sturtevant lie more than a hundred years of the intensive development of Indo-European phonological reconstruction. What has remained constant has been the validity of the etymologic relationship among Sanskrit veda, Greek woida, Gothic wita, all meaning "I know", and many other unshakable etymologies both of root and of non-root morphemes recognized at the outset. And who will be bold enough to conjecture from what original the Indo-Europeanist one hundred years from now will derive these same forms?

Criticism

Errors in application

The presence of frequent errors in Greenberg's data has been pointed out by linguists such as Lyle Campbell and Alexander Vovin, who see it as fatally undermining Greenberg's attempt to demonstrate the reliability of mass comparison. Campbell notes in his discussion of Greenberg's Amerind proposal that "nearly every specialist finds extensive distortions and inaccuracies in Greenberg's data"; for example, Willem Adelaar, a specialist in Andean languages, has stated that "the number of erroneous forms [in Greenberg's data] probably exceeds that of the correct forms". Some forms in Greenberg's data even appear to be attributed to the wrong language. Greenberg also neglects known sound changes that languages have undergone; once these are taken into account, many of the resemblances he points out vanish. Greenberg's data also contains errors of a more systematic sort: for instance, he groups unrelated languages together based on outdated classifications or because they have similar names.

Greenberg also arbitrarily deems certain portions of a word to be affixes when affixes of the requisite phonological shape are unknown to make words cohere better with his data. Conversely, Greenberg frequently employs affixed forms in his data, failing to recognise actual morphemic boundaries; when affixes are removed, the words often no longer bear any resemblance to his "Amerind" reconstructions. Greenberg has responded to this criticism by claiming that "the method of multilateral comparison is so powerful that it will give reliable results even with the poorest data. Incorrect material should merely have a randomizing effect”. This has hardly reassured critics of the method, who are far from convincing of the method's "power".

Borrowing

A prominent criticism of mass comparison is that it cannot distinguish borrowed forms from inherited ones, unlike comparative reconstruction, which is able to do so through regular sound correspondences. Undetected borrowings within Greenberg's data support this claim; for instance, he lists "cognates" of Uwa baxita "machete", even though it is a borrowing from Spanish machete. Greenberg (1957, p. 39) admits that "in particular and infrequent instances the question of borrowing may be doubtful" when using mass comparison, but claims that basic vocabulary is unlikely to be borrowed compared to cultural vocabulary, stating that "where a mass of resemblances is due to borrowing, they will tend to appear in cultural vocabulary and to cluster in certain semantic areas which reflect the cultural nature of the contact." Mainstream linguists accept this premise, but claim that it does not suffice for distinguishing borrowings from inherited vocabulary.

According to him, any type of linguistic item may be borrowed "on occasion", but "fundamental vocabulary is proof against mass borrowing". However, languages can and do borrow basic vocabulary. For instance, in the words of Campbell, Finnish has borrowed "from its Baltic and Germanic neighbors various terms for basic kinship and body parts, including 'mother', 'daughter', 'sister', 'tooth', 'navel', 'neck', 'thigh', and 'fur'". Greenberg continues by stating that "[D]erivational, inflectional, and pronominal morphemes and morph alternations are the least subject of all to borrowing"; he does incorporate morphological and pronominal correlations when performing mass comparison, but they are peripheral and few in number compared to his lexical comparisons. Greenberg himself acknowledges the peripheral role they play in his data by saying that they are "not really necessary". Furthermore, the correlations he lists are neither exclusive to or universally found within the languages which he compares. Greenberg is correct in pointing out that borrowing of pronouns or morphology is rare, but it cannot be ruled out without recourse to a method more sophisticated than mass comparison.

Greenberg continues by claiming that "[R]ecurrent sound correspondences" do not suffice to detect borrowing, since "where loans are numerous, they often show such correspondences" (Greenberg 1957, pp. 39–40). However, Greenberg misrepresents the practices of mainstream comparative linguistics here; few linguists advocate using sound correspondences to the exclusion of all other kinds of evidence. This additional evidence often helps separate borrowings from inherited vocabulary; for instance, Campbell mentions how "[c]ertain sorts of patterned grammatical evidence (that which resists explanation from borrowing, accident, or typology and universals) can be important testimony, independent of the issue of sound correspondences". It may not always be possible to separate borrowed and inherited material, but any method has its limits; in the vast majority of cases, the difference can discerned.

Chance resemblances

Cross-linguistically, chance resemblances between unrelated lexical items are common, due to the large amount of lexemes present across the world's languages; for instance, English much and Spanish mucho are demonstrably unrelated, despite their similar phonological shape. This means that many of the resemblances found through mass comparison are likely to be coincidental. Greenberg worsens this issue by reconstructing a common ancestor when only a small proportion of the languages he compares actually display a match for any given lexical item, effectively allowing him to cherry-pick similar-looking lexical items from a wide array of languages. Though they are less susceptible to borrowing, pronouns and morphology also typically display a restricted subset of a language's phonemic inventory, making cross-linguistic chance resemblances more likely.

Greenberg also allows for a wide semantic latitude when comparing items; while widely accepted linguistic comparisons do allow for a degree of semantic latitude, what he allows for is incommensurably greater; for instance, one of his comparisons involves words for "night", "excrement", and "grass".

Sound symbolism and onomatopoeia

Proponents of mass comparison often neglect to exclude classes of words that are usually considered to be unreliable for proving linguistic relationships. For instance, Greenberg made no attempt to exclude onomatopoeic words from his data. Onomatopoeic words are often excluded from linguistic comparison, as similar-sounding onomatopoeic words can easily evolve in parallel. Though it is impossible to make a definite judgement as to whether a word is onomatopoeic, certain semantic fields, such as "blow" and "suck", show a cross-linguistic tendency to be onomatopoeic; making such a judgement may require deep analysis of a type that mass comparison makes difficult. Similarly, Greenberg neglected to exclude items affected by sound symbolism, which often distorts the original shape of lexical items, from his data. Finally, "nursery words", such as "mama" and "papa" lack evidential value in linguistic comparison, as they are usually thought to derive from the sounds infants make when beginning to acquire languages. Advocates of mass comparison often avoid taking sufficient care to exclude nursery words; one, Merritt Ruhlen has even attempted to downplay the problems inherent in using them in linguistic comparison. The fact that many of indigenous languages of the Americas have pronouns that begin with nasal stops, which Greenberg sees as evidence of common ancestry, may ultimately also be linked to early speech development; Algonquian specialist Ives Goddard notes that "A gesture equivalent to that used to articulate the sound n is the single most important voluntary muscular activity of a nursing infant".

Position of Greenberg's detractors

Since the development of comparative linguistics in the 19th century, a linguist who claims that two languages are related, whether or not there exists historical evidence, is expected to back up that claim by presenting general rules that describe the differences between their lexicons, morphologies, and grammars. The procedure is described in detail in the comparative method article.

For instance, one could demonstrate that Spanish is related to Italian by showing that many words of the former can be mapped to corresponding words of the latter by a relatively small set of replacement rules—such as the correspondence of initial es- and s-, final -os and -i, etc. Many similar correspondences exist between the grammars of the two languages. Since those systematic correspondences are extremely unlikely to be random coincidences, the most likely explanation by far is that the two languages have evolved from a single ancestral tongue (Latin, in this case).

All pre-historical language groupings that are widely accepted today—such as the Indo-European, Uralic, Algonquian, and Bantu families—have been established this way.

Response of Greenberg's defenders

The actual development of the comparative method was a more gradual process than Greenberg's detractors suppose. It has three decisive moments. The first was Rasmus Rask's observation in 1818 of a possible regular sound change in Germanic consonants. The second was Jacob Grimm's extension of this observation into a general principle (Grimm's law) in 1822. The third was Karl Verner's resolution of an irregularity in this sound change (Verner's law) in 1875. Only in 1861 did August Schleicher, for the first time, present systematic reconstructions of Indo-European proto-forms (Lehmann 1993:26). Schleicher, however, viewed these reconstructions as extremely tentative (1874:8). He never claimed that they proved the existence of the Indo-European family, which he accepted as a given from previous research—primarily that of Franz Bopp, his great predecessor in Indo-European studies.

Karl Brugmann, who succeeded Schleicher as the leading authority on Indo-European, and the other Neogrammarians of the late 19th century, distilled the work of these scholars into the famous (if often disputed) principle that "every sound change, insofar as it occurs automatically, takes place according to laws that admit of no exception" (Brugmann 1878).

The Neogrammarians did not, however, regard regular sound correspondences or comparative reconstructions as relevant to the proof of genetic relationship between languages. In fact, they made almost no statements on how languages are to be classified (Greenberg 2005:158). The only Neogrammarian to deal with this question was Berthold Delbrück, Brugmann's collaborator on the Grundriß der vergleichenden Grammatik der indogermanischen Sprachen (Greenberg 2005:158-159, 288). According to Delbrück (1904:121-122, quoted in Greenberg 2005:159), Bopp had claimed to prove the existence of Indo-European in the following way:

The proof was produced by juxtaposing words and forms of similar meanings. When one considers that in these languages the formation of the inflectional forms of the verb, noun and pronoun agrees in essentials and likewise that an extraordinary number of inflected words agree in their lexical parts, the assumption of chance agreement must appear absurd.

Furthermore, Delbrück took the position later enunciated by Greenberg on the priority of etymologies to sound laws (1884:47, quoted in Greenberg 2005:288): "obvious etymologies are the material from which sound laws are drawn."

The opinion that sound correspondences or, in another version of the opinion, reconstruction of a proto-language are necessary to show relationship between languages thus dates from the 20th, not the 19th century, and was never a position of the Neogrammarians. Indo-European was recognized by scholars such as William Jones (1786) and Franz Bopp (1816) long before the development of the comparative method.

Furthermore, Indo-European was not the first language family to be recognized by students of language. Semitic had been recognized by European scholars in the 17th century, Finno-Ugric in the 18th. Dravidian was recognized in the mid-19th century by Robert Caldwell (1856), well before the publication of Schleicher's comparative reconstructions.

Finally, the supposition that all of the language families generally accepted by linguists today have been established by the comparative method is untrue. Some families were accepted for decades before comparative reconstructions of them were put forward, for example Afro-Asiatic and Sino-Tibetan. Many languages are generally accepted as belonging to a language family even though no comparative reconstruction exists, often because the languages are only attested in fragmentary form, such as the Anatolian language Lydian (Greenberg 2005:161). Conversely, detailed comparative reconstructions exist for some language families which nonetheless remain controversial, such as Altaic. Detractors of Altaic point out that the data collected to show by comparativism the existence of the family is scarce, wrong and non sufficient. Keep in mind that regular phonological correspondences need thousands of lexicon lists to be prepared and compared before being established, and these lists are lacking for many of the proposed families identified through mass comparison. Furthermore, other specific problems affect "comparative" lists of both proposals, like the late attestation for Altaic languages, or the comparison of not certain proto-forms.

A continuation of earlier methods?

Greenberg claimed that he was at bottom merely continuing the simple but effective method of language classification that had resulted in the discovery of numerous language families prior to the elaboration of the comparative method (1955:1-2, 2005:75) and that had continued to do so thereafter, as in the classification of Hittite as Indo-European in 1917 (Greenberg 2005:160-161). This method consists in essentially two things: resemblances in basic vocabulary and resemblances in inflectional morphemes. If mass comparison differs from it in any obvious way, it would seem to be in the theoretization of an approach that had previously been applied in a relatively ad hoc manner and in the following additions:

  • The explicit preference for basic vocabulary over cultural vocabulary.
  • The explicit emphasis on comparison of multiple languages rather than bilateral comparisons.
  • The very large number of languages simultaneously compared (up to several hundred).
  • The introduction of typologically based paths of sound change.

The positions of Greenberg and his critics therefore appear to provide a starkly contrasted alternative:

  • According to Greenberg, the identification of sound correspondences and the reconstruction of protolanguages arise from genetic classification.
  • According to Greenberg's critics, genetic classification arises from the identification of sound correspondences or (others state) the reconstruction of protolanguages.

Time limits of the comparative method

Besides systematic changes, languages are also subject to random mutations (such as borrowings from other languages, irregular inflections, compounding, and abbreviation) that affect one word at a time, or small subsets of words. For example, Spanish perro (dog), which does not come from Latin, cannot be rule-mapped to its Italian equivalent cane (the Spanish word can is the Latin-derived equivalent but is much less used in everyday conversations, being reserved for more formal purposes). As those sporadic changes accumulate, they will increasingly obscure the systematic ones—just as enough dirt and scratches on a photograph will eventually make the face unrecognisable.

Toward a resolution of the conflict?

In spite of the apparently intractable nature of the conflict between Greenberg and his critics, a few linguists have begun to argue for its resolution. Edward Vajda, noted for his recent proposal of Dené–Yeniseian, attempts to stake out a position that is sympathetic to both Greenberg's approach and that of its critics, such as Lyle Campbell and Johanna Nichols.

See also


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