Where does “ⲕⲏⲙⲉ” come from?

ⲕⲏⲙⲉ (Coptic) comes from Demotic kmj, from Egyptian kmt, from Egyptian km, from Proto-Afroasiatic *kum-.

Ancestry of “ⲕⲏⲙⲉ”, step by step

StepLanguageWordMeaning
1Demotickmj—
2Egyptiankmta type of jar
3Egyptiankmto complete; black
4Proto-Afroasiatic*kum-—
Every word from Proto-Afroasiatic *kum- →Every word from Egyptian km →Every word from Egyptian kmt →