Where does “Ultima Thule” come from?

Ultima Thule (English) comes from Latin Thūlē, from Ancient Greek Θούλη — Thule.

Ancestry of “Ultima Thule”, step by step

Step	Language	Word	Meaning
1	Latin	Thūlē	—
2	Ancient Greek	Θούλη	Thule

Ultima Thule — Etymology, Origin & Word History | Etymology Explorer