Where does “βαρβάρα” come from?

βαρβάρα (Greek) comes from Ancient Greek βαρβάρα — a certain kind of plaster.

βαρβάρα (Greek): shelduck

Definitions

Step	Language	Word	Meaning
1	Ancient Greek	βαρβάρα	a certain kind of plaster

βαρβάρα — Etymology, Origin & Word History | Etymology Explorer