diachrony
/daɪˈækrəni/
noun
- The study or consideration of change over time, especially in language.
- The textbook explains the difference between diachrony and synchrony clearly.
- In diachrony, we see how the word 'nice' changed from meaning 'foolish' to 'pleasant'.
- Diachrony contrasts with synchrony, which looks at a language at one point in time.
Antonyms