Was reimt sich auf onym

3 Syllables
akronym, anonym, antonym, astronym, endonym, eponym, ergonym, exonym, holonym, homonym, hydronym, hyponym, kryptonym, meronym, paronym, patronym, protonym, synonym, toponym, ökonym
4 Syllables
anthroponym, heteronym, hyperonym, kohyponym, pseudonym
6 Syllables
quasisynonym