Where does “-zaa” come from?

-zaa (Swahili) comes from Proto-Athabaskan *-za̓ˑd — mouth.

Ancestry of “-zaa”, step by step

StepLanguageWordMeaning
1Proto-Athabaskan*-za̓ˑdmouth
Every word from Proto-Athabaskan *-za̓ˑd