Where does “snjóa” come from?

snjóa (Icelandic) comes from Old Norse snjóva, from Proto-Germanic snīwaną, from Proto-Indo-European sneygʷʰ- — to snow.

snjóa (Icelandic): to snow

Definitions

Step	Language	Word	Meaning
1	Old Norse	snjóva	—
2	Proto-Germanic	snīwaną	to snow
3	Proto-Indo-European	sneygʷʰ-	to snow

snjóa — Etymology, Origin & Word History | Etymology Explorer