who has great hold and punctuality on grammar are GRAMERIANS

This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
The correct spelling of the word is   grammarian.   some people write it as grammerian.
There is no word as gramerian.

Grammarian is a person who studies, or teaches grammar of any language. Some one who is an expert in grammar.