Where does “nias” come from?

nias (English) comes from French niais, from Latin nidax, from Latin nidus, from Proto-Italic nizdos, from Proto-Indo-European nisdós, from Proto-Indo-European h₁ni, from Proto-Indo-European h₁én — in.

nias (English): A young hawk; an eyas; An unsophisticated person

Definitions

A young hawk; an eyas; An unsophisticated person

Ancestry of “nias”, step by step

Step	Language	Word	Meaning
1	French	niais	Qualifies a falconry bird caught in the nest;...
2	Latin	nidax	—
3	Latin	nidus	nest; dwelling for animals
4	Proto-Italic	nizdos	nest
5	Proto-Indo-European	nisdós	nest
6	Proto-Indo-European	h₁ni	down
7	Proto-Indo-European	h₁én	in

Every word from Proto-Indo-European h₁én →Every word from Proto-Indo-European h₁ni →Every word from Proto-Indo-European nisdós →