one that is skilled in or teaches grammar.

Anciently the name grammarian was a title of honour, literature, and erudition, being given to persons accounted learned in any art or faculty whatever. But it is otherwise now, being frequently used as a term of reproach, to signify a dry plodding person employed about words and phrases, but inattentive to the true beauties of expression and delicacy of sentiment. The ancient grammarians, called also philologists, must not be confounded with the grammatici, whose sole business was to teach children the first elements of language. Varro, Cicero, Maffa, and even Julius Caesar, thought it no dishonour to be ranked grammarians, who had many privileges granted to them by the Roman emperors.