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glottochronology

[ glot-oh-kruh-nol-uh-jee, glot-uh- ]

noun

, Linguistics.
  1. the branch of lexicostatistics that studies the rate of replacement of vocabulary and attempts to determine what percentage of basic vocabulary two presently distinct but related languages share, using the information thus obtained to estimate how long ago they ceased being a single language.


glottochronology

/ ˌɡlɒtəʊkrəˈnɒlədʒɪ /

noun

  1. the use of lexicostatistics to establish that languages are historically related


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Word History and Origins

Origin of glottochronology1

First recorded in 1950–55; glotto- + chronology

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Word History and Origins

Origin of glottochronology1

C20 glotto-, from Greek glōtta tongue

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glotto-glottogony