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Ice Age ancestors might have used words in common with us

Date:
May 7, 2013
Source:
University of Reading
Summary:
New research shows that Ice Age people living in Europe 15,000 years ago might have used forms of some common words including I, you, we, man and bark, that in some cases could still be recognized today.

Using statistical models, researchers have predicted that certain words would have changed so slowly over long periods of time as to retain traces of their ancestry for up to ten thousand or more years. These words point to the existence of a linguistic super-family tree that unites seven major language families of Eurasia.
Credit: Anton Balazh / Fotolia

New research from the University of Reading shows that Ice Age people living in Europe 15,000 years ago might have used forms of some common words including I, you, we, man and bark, that in some cases could still be recognized today.

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Using statistical models, Professor of Evolutionary Biology Mark Pagel and his team predicted that certain words would have changed so slowly over long periods of time as to retain traces of their ancestry for up to ten thousand or more years. These words point to the existence of a linguistic super-family tree that unites seven major language families of Eurasia (seven language families: Indo-European, Uralic, Altaic, Kartvelian, Dravidian, Chuckchee-Kamchatkan and Eskimo-Aleut).

Previously linguists have relied solely on studying shared sounds among words to identify those that are likely to be derived from common ancestral words, such as the Latin pater and the English father. A difficulty with this approach is that two words might have similar sounds just by accident, such as the words team and cream.

To combat this problem, Professor Pagel's team showed that a subset of words used frequently in everyday speech, are more likely to be retained over long periods of time. The team used this method to predict words likely to have shared sounds, giving greater confidence that when such sound similarities are discovered they do not merely reflect the workings of chance.

Professor Pagel, from the University of Reading's School of Biological Sciences, said: "The way in which we use a certain set of words in everyday speech is something common to all human languages. We discovered numerals, pronouns and special adverbs are replaced far more slowly, with linguistic half-lives of once every 10,000 or even more years. As a rule of thumb, words used more than about once per thousand in everyday speech were seven to ten times more likely to show deep ancestry in the Eurasian super-family."

Professor Pagel's previous research on the evolution of human languages has built up a picture of how our 7,000 living human languages have evolved. Professor Pagel and his research team have documented the shared patterns in the way we use language and researched why some words succeed and others have become obsolete over time. This is done by using statistical estimates of rates of lexical replacement for a range of vocabulary items in the Indo-European languages. The variation in replacement rates makes the most common vocabulary items in these languages promising candidates for estimating the divergence between pairs of languages.

"Ultra-conserved words point to deep language ancestry across Eurasia" is published in the Proceedings of the National Academy of Sciences.


Story Source:

The above story is based on materials provided by University of Reading. Note: Materials may be edited for content and length.


Journal Reference:

  1. M. Pagel, Q. D. Atkinson, A. S. Calude, A. Meade. Ultraconserved words point to deep language ancestry across Eurasia. Proceedings of the National Academy of Sciences, 2013; DOI: 10.1073/pnas.1218726110

Cite This Page:

University of Reading. "Ice Age ancestors might have used words in common with us." ScienceDaily. ScienceDaily, 7 May 2013. <www.sciencedaily.com/releases/2013/05/130507074657.htm>.
University of Reading. (2013, May 7). Ice Age ancestors might have used words in common with us. ScienceDaily. Retrieved April 24, 2015 from www.sciencedaily.com/releases/2013/05/130507074657.htm
University of Reading. "Ice Age ancestors might have used words in common with us." ScienceDaily. www.sciencedaily.com/releases/2013/05/130507074657.htm (accessed April 24, 2015).

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