1. in a way that considers or traces changes in something over time; from a historical or developmental perspective
Usage: commonly used in linguistics, history, and social sciences

Examples

• The linguist examined how the pronunciation of the word changed diachronically across three centuries.
• Diachronically speaking, the institution evolved from a small local organization into a major national force.
• To understand the language fully, we must study it both synchronically and diachronically.
• The researcher traced the concept diachronically through ancient, medieval, and modern texts.
• Diachronically, the meaning of the term has shifted significantly since its first recorded use.