North American English form of lupin (any plant of the genus Lupinus; an edible legume seed of one of these plants).
of or relating to or characteristic of wolves
Of, or pertaining to, the wolf.
Borrowed from Latin lupīnus, from lupus ("wolf") + -īnus ("pertaining to"). Doublet of lupin and piecewise doublet of wolven, Latin lupus being a cognate of wolf and -ine being a doublet of -en.