Grammarian

1. (n.) One versed in grammar, or the construction of languages; a philologist.

2. (n.) One who writes on, or teaches, grammar.

Thesaurus Entries

dialectician, etymologer, etymologist, glossarist, glossographer, grammaticaster, grammatist, lexicographer, lexicologist, linguist, linguistic scholar, linguistic scientist, linguistician, orthoepist, paleographer, philologaster, philologer, philologian, philologist, phonemicist, phonetician, phoneticist, phonologist, semanticist, semasiologist