👉 Idiography is a concept in the study of languages, particularly those that are considered to belong to one language family but have different grammatical and phonological rules than those belonging to another. Idiographic languages often have distinct pronunciation patterns, vocabulary, and grammar structures, which can vary significantly across their speakers. The term "idiology" was coined by sociologist Richard M. Nisbet in 1958 as a way of describing the phenomenon where two or more languages use different