Where does “try” come from?

try (Middle Breton) comes from Old Breton tri, from Proto-Brythonic tri, from Proto-Celtic trīs, from Proto-Indo-European *tréyes.

Ancestry of “try”, step by step

StepLanguageWordMeaning
1Old Bretontri—
2Proto-Brythonictrithree
3Proto-Celtictrīsthree
4Proto-Indo-European*tréyes—

Words derived from “try”

Every word from Proto-Indo-European *tréyes →Every word from Proto-Celtic trīs →Every word from Proto-Brythonic tri →