# glottochronology

> English word · Noun · IPA /ˌɡlɒtəʊkɹəˈnɒlədʒi/

## Definitions
1. The method or study in estimating the time at which a related language diverged from its common ancestor.

## Etymology
From glotto- + chronology.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/glottochronology