Where does “ⲓⲟϩ” come from?

ⲓⲟϩ (Coptic) comes from Demotic jꜥḥ, from Egyptian jꜥḥ — the moon/Iah; moon; Iah/the moon.

Ancestry of “ⲓⲟϩ”, step by step

Step	Language	Word	Meaning
1	Demotic	jꜥḥ	moon
2	Egyptian	jꜥḥ	the moon/Iah; moon; Iah/the moon

ⲓⲟϩ — Etymology, Origin & Word History | Etymology Explorer