Where does “tree-rheynnagh” come from?
tree-rheynnagh (Manx) comes from Manx tree-rheynn, from Manx tree-, from Manx three, from Manx tree, from Old Irish trí, from Proto-Celtic trīs, from Proto-Indo-European *tréyes.
tree-rheynnagh (Manx): trisecting
Ancestry of “tree-rheynnagh”, step by step