Where does “ⲕⲟⲩⲫⲁ” come from?

ⲕⲟⲩⲫⲁ (Coptic) comes from Arabic الْكُوفَة.

Ancestry of “ⲕⲟⲩⲫⲁ”, step by step

Step	Language	Word	Meaning
1	Arabic	الْكُوفَة	—