noun
- Plural of diachrony; the study of language or phenomena as they change over time, contrasted with synchrony (study at a single point in time).
Usage: linguistics; formal
Examples
- Diachronies reveal how English pronunciation has shifted over centuries.
- The professor compared synchronies and diachronies to show language evolution.
- Historical linguists rely on diachronies to trace word origins.
- Diachronies of the Romance languages demonstrate their descent from Latin.
- Understanding diachronies helps explain why modern French differs from Old French.