English

mareogram

From mare- + -gram.

Formed from mare + gram

Proto-Indo-European *márkos ‘horse’

…

Proto-Germanic *marhijō ‘female horse’

Proto-West Germanic *marhijā ‘mare, female horse’

Old English mīere ‘female horse, mare’

Middle English mare ‘a horse’

English mare

Ancient Greek γράμμα ‘a small weight, a scruple’

French gramme

English gram

Today it means

noun A marigram.

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

Etymograph / mareogram