Where does “𐌱” come from?

𐌱 (Gothic) comes from Ancient Greek β, from Phoenician 𐤁, from Egyptian 𓉐.

Ancestry of “𐌱”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	β	—
2	Phoenician	𐤁	bet; beth; house
3	Egyptian	𓉐	—