Where does “nia” come from?

nia (Esperanto) comes from Esperanto ni, from Italian noi, from Latin nōs, from Proto-Italic nōs, from Proto-Indo-European wéy, from Proto-Indo-European éǵh₂ — I.

nia (Esperanto): our

Definitions

Ancestry of “nia”, step by step

Step	Language	Word	Meaning
1	Esperanto	ni	we; ourselves
2	Italian	noi	we; us
3	Latin	nōs	we, us
4	Proto-Italic	nōs	we
5	Proto-Indo-European	wéy	we
6	Proto-Indo-European	éǵh₂	I

Every word from Proto-Indo-European éǵh₂ →Every word from Proto-Indo-European wéy →Every word from Proto-Italic nōs →