Where does “trí-” come from?
trí- (Irish) comes from Irish trí, from Old Irish trí, from Proto-Celtic trīs, from Proto-Indo-European *tréyes.
trí- (Irish): tri-
Ancestry of “trí-”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Irish | trí | three; through |
| 2 | Old Irish | trí | three |
| 3 | Proto-Celtic | trīs | three |
| 4 | Proto-Indo-European | *tréyes | — |