Where does “alphabeticus” come from?

alphabeticus (Latin) comes from Ancient Greek ἄλφα, from Phoenician 𐤀𐤋𐤐, from Proto-Semitic *ʔalp-.

Ancestry of “alphabeticus”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	ἄλφα	alpha, the name for the first letter Α, α of the...
2	Phoenician	𐤀𐤋𐤐	thousand; bull, ox, head of cattle
3	Proto-Semitic	*ʔalp-	—