Where does “notus” come from?

notus (Latin) comes from Latin nōscō, from Latin gnōscō, from Proto-Italic gnōskō, from Proto-Indo-European ǵn̥h₃sḱéti, from Proto-Indo-European ǵneh₃- — to know.

Ancestry of “notus”, step by step

Step	Language	Word	Meaning
1	Latin	nōscō	—
2	Latin	gnōscō	—
3	Proto-Italic	gnōskō	know, get to know
4	Proto-Indo-European	ǵn̥h₃sḱéti	to recognise
5	Proto-Indo-European	ǵneh₃-	to know

Every word from Proto-Indo-European ǵneh₃- →

notus — Etymology, Origin & Word History | Etymology Explorer