Where does “a(r)uɣ” come from?

a(r)uɣ (Proto-Inuit) comes from Proto-Eskimo aruɣ.

Ancestry of “a(r)uɣ”, step by step

Step	Language	Word	Meaning
1	Proto-Eskimo	aruɣ	—

a(r)uɣ — Etymology, Origin & Word History | Etymology Explorer