Definitions for "GLOTTOCHRONOLOGY"
System developed by M. Swadesh for estimating how long ago different language and language groups diverged from one another on the basis of their shared possession of cognates drawn from items in a list of primitive or basic objects, actions and concepts.
the determination of how long ago different languages evolved from a common source language; "he mapped the glottochronology of the Romance languages"
A mathematical method for estimating the date that two sister languages separated using the percentage of the cognates in the core vocabulary and a fixed rate of change.