Where does “Baetis” come from?

Baetis (Translingual) comes from Latin Baetis, from Ancient Greek Βαῖτις, from Undetermined bai-t-.

Ancestry of “Baetis”, step by step

Step	Language	Word	Meaning
1	Latin	Baetis	Guadalquivir
2	Ancient Greek	Βαῖτις	—
3	Undetermined	bai-t-	—

Baetis — Etymology, Origin & Word History | Etymology Explorer