A person who writes, compiles, or edits a dictionary
A specialist in etymology.
A specialist in a given branch of knowledge:
Find another word for philologist. In this page you can discover 14 synonyms, antonyms, idiomatic expressions, and related words for philologist, like: lexicographer, historical linguist, etymologist, grammarian, linguist, scholar, philologue, classicist, logician, literary critic and ethnologist.