During the course of their development, the word order of some languages change. Examples include Latin (SOV) that changed to SVO in the Romance languages, Proto-Austronesian (verb initial) that changed to SVO in most modern Austronesian languages, and the Insular Celtic languages, that developed VSO word order. How common is this phenomenon in the history of languages?
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This interesting topic was currently discussed in some blogs quoting this publication pnas.org/content/early/2011/10/04/1113716108 Currently have no time to write a detailed answer.– HauserCommented Nov 3, 2011 at 0:47
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1@Hauser Historical linguists generally don't think very highly of Ruhlen's work.– Gaston ÜmlautCommented Nov 3, 2011 at 4:45
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@GastonÜmlaut why not?– Otavio MacedoCommented Nov 3, 2011 at 18:19
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@OtavioMacedo For a start, here's an old LanguageLog posting by the very eminent Bill Poser, which describes some of the problems with Ruhlen's work.– Gaston ÜmlautCommented Nov 3, 2011 at 21:00
1 Answer
Change of basic constituent order should be relatively frequent. If two languages share a common ancestor, yet have different basic word orders, then at least one change (and possibly more) has occurred at some point in the course of their descent. When two related languages have the same basic word orders, it is often not possible to tell whether this is so because they are related, or because they are within the same linguistic area, because proximity between two languages is actually a better predictor of whether they will share basic word orders than is relatedness.
See, for example, the map: http://wals.info/feature/81A?tg_format=map&v1=c00d&v2=cd00&v3=cff0&v4=dff0&v5=dd00&v6=d00d&v7=cccc#
Languages form clusters where the basic constituent order is the same, regardless of their genetic affiliation. Although the region containing India and Southeast Asia contains a rather large number of language families, the area can be divided into two contiguous zones where the word order is the same: SOV in India, SVO in SE Asia.
On the importance of language contact in language change AND stasis, see: Dryer, Matthew S. 1989 "Large Linguistic Areas and Language Sampling". Studies in Language 13: 257-292.