glottochronology


glot·to·chro·nol·o·gy

noun \ˌglä-tō-krə-ˈnä-lə-jē\

Definition of GLOTTOCHRONOLOGY

:  a linguistic method that uses the rate of vocabulary replacement to estimate the date of divergence for distinct but genetically related languages
glot·to·chro·no·log·i·cal \-ˌkrä-nə-ˈlä-ji-kəl, -ˌkrō-\ adjective

First Known Use of GLOTTOCHRONOLOGY

1953

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