Where does “Dhruva” come from?

Dhruva (English) comes from Sanskrit ध्रुव, from Proto-Indo-Iranian dʰruwás, from Proto-Indo-European dʰru-wó-s, from Proto-Indo-European -wós — Creates adjectives from verb stems.

Ancestry of “Dhruva”, step by step

Step	Language	Word	Meaning
1	Sanskrit	ध्रुव	fixed, immovable; firm, stable; certain, sure,...
2	Proto-Indo-Iranian	dʰruwás	fixed, firm
3	Proto-Indo-European	dʰru-wó-s	—
4	Proto-Indo-European	-wós	Creates adjectives from verb stems

Every word from Proto-Indo-European -wós →

Dhruva — Etymology, Origin & Word History | Etymology Explorer