Where does “ᾱ̔” come from?

ᾱ̔ (Ancient Greek) comes from Phoenician 𐤀, from Egyptian 𓃾.

Ancestry of “ᾱ̔”, step by step

Step	Language	Word	Meaning
1	Phoenician	𐤀	ox; aleph; alef
2	Egyptian	𓃾	—

ᾱ̔ — Etymology, Origin & Word History | Etymology Explorer