Where does “ųųg han” come from?

ųųg han (Gwich'in) comes from Gwich'in chųų gąįį han — white water river.

Ancestry of “ųųg han”, step by step

Step	Language	Word	Meaning
1	Gwich'in	chųų gąįį han	white water river

ųųg han — Etymology, Origin & Word History | Etymology Explorer