Etymograph

English

grammar Nazi

First use appears c.

A compound of grammar + Nazi ‘one who imposes one's views on others’

Proto-Indo-European *gerbʰ- ‘to carve, scratch’

…

Latin grammatica

Vulgar Latin *grammāria

Old French gramaire ‘classical learning’

Middle English gramere

English grammar

German Nationalsozialist ‘National Socialist’

German Nazi ‘a member or (ideological) supporter of the…’

English Nazi

The story

First use appears c. 1991.

Today it means

noun A person who habitually criticizes the grammar and (often) usage in others' speech or writing, often in ways that are sometimes not even linguistically accurate.

Language periods are conventional ranges, not dates for this word.

Etymograph / grammar Nazi