What is the term for the process of language change over time?

وقت کے ساتھ زبان کی تبدیلی کے عمل کی اصطلاح کیا ہے؟

Diachronic change

Synchronic change

Language shift

Language drift

Diachronic change: Refers to the study of how languages change over time, focusing on historical developments and the evolution of language.