Where does “beta” come from?

beta (Galician) comes from Ancient Greek βῆτα, from Phoenician 𐤁𐤕, from Proto-Semitic bayt- — house.

beta (Galician): beta

Definitions

Step	Language	Word	Meaning
1	Ancient Greek	βῆτα	beta, the name for the second letter Β, β of the...
2	Phoenician	𐤁𐤕	house
3	Proto-Semitic	bayt-	house

beta — Etymology, Origin & Word History | Etymology Explorer