Where does “-acus” come from?

-acus (New Latin) comes from Ancient Greek -ακός, from Ancient Greek -κός, from Proto-Indo-European -ḱos — -y, -ic.

Ancestry of “-acus”, step by step

StepLanguageWordMeaning
1Ancient Greek-ακός-ic
2Ancient Greek-κόςforms adjectives with the sense of 'of or...
3Proto-Indo-European-ḱos-y, -ic

Words derived from “-acus”

Every word from Proto-Indo-European -ḱos →Every word from Ancient Greek -κός →Every word from Ancient Greek -ακός →