[san.guine] adj [ME sanguin, fr. MF, fr. L sanguineus, fr. sanguin-, sanguis] (14c) 1: bloodred
2. a: consisting of or relating to blood b: bloodthirsty, sanguinary c of the complexion: ruddy
3: having blood as the predominating bodily humor; also: having the bodily conformation and temperament held characteristic of such predominance and marked by sturdiness, high color, and cheerfulness
4: confident, optimistic -- san.guine.ly adv -- san.guine.ness n -- san.guin.i.ty n
[2]sanguine n (1500): a moderate to strong red