The Collaborative International Dictionary
Trifoly
Trifoly \Tri"fo*ly\, n. [L. trifolium. See Trifoliate, Trefoil.] (Bot.) Sweet trefoil. [Obs.]
She was crowned with a chaplet of trifoly.
--B. Jonson.
Wiktionary
trifoly
n. (context obsolete English) melilot; sweet clover