Where does “γ” come from?

γ (Ancient Greek) comes from Ancient Greek Γ, from Phoenician 𐤂, from Egyptian 𓌙.

γ (Ancient Greek): Lower-case gamma, the third letter of the ancient Greek alphabet. Its name was γάμμα and it represented a voiced velar stop: before velars, it represented a velar nasal:. It is preceded by β and followed by δ