Where does “-तृ” come from?

-तृ (Sanskrit) comes from Proto-Indo-European -tōr, from Proto-Indo-European -tor-s.

Ancestry of “-तृ”, step by step

Step	Language	Word	Meaning
1	Proto-Indo-European	-tōr	Derives agent nouns from verbs, denoting someone...
2	Proto-Indo-European	-tor-s	—

-तृ — Etymology, Origin & Word History | Etymology Explorer