Dictionary.com

glottochronology

[ glot-oh-kruh-nol-uh-jee, glot-uh- ]
/ ˌglɒt oʊ krəˈnɒl ə dʒi, ˌglɒt ə- /
Save This Word!

noun Linguistics.
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.
QUIZ
ARE YOU A TRUE BLUE CHAMPION OF THESE "BLUE" SYNONYMS?
We could talk until we're blue in the face about this quiz on words for the color "blue," but we think you should take the quiz and find out if you're a whiz at these colorful terms.
Question 1 of 8
Which of the following words describes “sky blue”?
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of glottochronology

First recorded in 1950–55; glotto- + chronology
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for glottochronology

glottochronology
/ (ˌɡlɒtəʊkrəˈnɒlədʒɪ) /

noun
the use of lexicostatistics to establish that languages are historically related

Word Origin for glottochronology

C20 glotto-, from Greek glōtta tongue
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
FEEDBACK