noun
grammarian
gruh-MAIR-ee-uhn/ɡrəˈmeriən/
A person who specializes in the rules of a language.
The grammarian explains why this sentence needs a different verb.

Etymology
The ending turns grammar or learning into a label for a person versed in it. Once used broadly for a learned person, grammarian now identifies a specialist in the rules and patterns of language.
In context
the first grammars of English were written in the 18th century those people's profession was grammarian what were they grammarians of they were grammarians of Latin
More examples
- Several grammarians disagree about whether that construction is acceptable.
- We ask a grammarian to explain the rule about pronouns.
- Her work as a grammarian focuses on spoken English.
Forms
grammarian · grammarians
grammar noun — The system of rules governing a language.
grammatical adjective — Relating to the structural rules of a language.
Similar words
- linguist
- Studies language broadly rather than focusing specifically on grammatical rules.