Where does “niso” come from?

niso (Galician) comes from Galician en, from Old Portuguese en, from Latin în, from Latin en, from Proto-Italic en, from Proto-Indo-European h₁én — in.

niso (Galician): in that

Definitions

in that

Ancestry of “niso”, step by step

niso traces back through two separate lines of ancestry.

via Galician en

Step	Language	Word	Meaning
1	Galician	en	in; When preceding a complement of a verb it can...
2	Old Portuguese	en	in
3	Latin	în	in, at, on, upon, from (space)
4	Latin	en	lookǃ beholdǃ; reallyǃ?; come onǃ
5	Proto-Italic	en	in
6	Proto-Indo-European	h₁én	in

via Galician iso

Step	Language	Word	Meaning
1	Galician	iso	that
2	Old Portuguese	isso	—
3	Latin	ipsum	accusative masculine singular of ipse; nominative...
4	Latin	ipse	himself, herself, itself, the very, the actual;...
5	Proto-Italic	*e(s)peso	himself, herself, itself

Every word from Proto-Indo-European h₁én →Every word from Proto-Italic en →Every word from Latin en →