Where does “sardīna” come from?

sardīna (Latin) comes from Latin Sardinia, from Ancient Greek Σαρδώ — Sardinia.

Ancestry of “sardīna”, step by step

Step	Language	Word	Meaning
1	Latin	Sardinia	—
2	Ancient Greek	Σαρδώ	Sardinia

sardīna — Etymology, Origin & Word History | Etymology Explorer