Where does “polaris” come from?

polaris (Latin) comes from Latin polus, from Ancient Greek πόλος, from Proto-Indo-European kʷel- — to turn.

Ancestry of “polaris”, step by step

Step	Language	Word	Meaning
1	Latin	polus	pole
2	Ancient Greek	πόλος	pivot, hinge, axis, pole; axis of the celestial...
3	Proto-Indo-European	kʷel-	to turn