Where does “niñeiro” come from?

niñeiro (Galician) comes from Galician niño, from Old Portuguese nio, from Latin nidus, from Proto-Italic nizdos, from Proto-Indo-European nisdós, from Proto-Indo-European h₁ni, from Proto-Indo-European h₁én — in.

niñeiro (Galician): nest egg

Definitions

nest egg

Ancestry of “niñeiro”, step by step

Step	Language	Word	Meaning
1	Galician	niño	nest
2	Old Portuguese	nio	nest
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 →