| NOUN | cognition | glottochronology | the determination of how long ago different languages evolved from a common source language |
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| Meaning | The determination of how long ago different languages evolved from a common source language. | |
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| Example | "he mapped the glottochronology of the Romance languages" | |
| Broader | chronology | The determination of the actual temporal sequence of past events |
| Adjectives | glottochronological | pertaining to the study of the evolution of languages from a common source |