Etymograph

English

ammonitology

From ammonite + -ology.

Formed from ammonite + -ology

Egyptian jmn

Ancient Greek Ᾰ̓́μμων

Latin Ammōn

French ammonite

English ammonite

Today it means

noun The scientific study of ammonites.

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

Etymograph / ammonitology