The Collaborative International Dictionary
saintfoin
Sainfoin \Sain"foin\ (?; 277), n. [F., fr. sain wholesome (L. sanus; see Sane.) + foin hay (L. f[ae]num); or perh. fr. saint sacred (L. sanctus; see Saint) + foin hay.] (Bot.)
A leguminous plant ( Onobrychis sativa) cultivated for fodder. [Written also saintfoin.]
A kind of tick trefoil ( Desmodium Canadense). [Canada]