Where does “trivium” come from?

trivium (Indonesian) comes from English trivium, from Latin trivium, from Latin trivius, from Latin tri-, from Latin trēs, from Proto-Italic trēs, from Proto-Indo-European *tréyes.

Ancestry of “trivium”, step by step

Step	Language	Word	Meaning
1	English	trivium	The lower division of the liberal arts; grammar,...
2	Latin	trivium	a crossroads or fork where three roads meet;...
3	Latin	trivius	of or belonging to crossroad temples
4	Latin	tri-	three, tri-
5	Latin	trēs	three; 3
6	Proto-Italic	trēs	three
7	Proto-Indo-European	*tréyes	—

Every word from Proto-Indo-European *tréyes →