Where does “ostionera” come from?

ostionera (Spanish) comes from Spanish ostión, from Spanish ostrón, from Spanish ostra, from Portuguese ostra, from Latin ostrea, from Ancient Greek ὄστρεον — bivalve; oyster; purple pigment, probably that...

ostionera (Spanish): an oyster bar; a place where oysters can be...

Definitions

an oyster bar; a place where oysters can be...

Ancestry of “ostionera”, step by step

Step	Language	Word	Meaning
1	Spanish	ostión	oyster (particularly from genus Crassostrea), specially when prepared or served for food
2	Spanish	ostrón	—
3	Spanish	ostra	oyster
4	Portuguese	ostra	oyster
5	Latin	ostrea	oyster, mussel
6	Ancient Greek	ὄστρεον	bivalve; oyster; purple pigment, probably that...

Every word from Ancient Greek ὄστρεον →Every word from Latin ostrea →Every word from Portuguese ostra →