Arsesmart :: Arsesmart (n.) Smartweed; water pepper.
Nosesmart :: Nosesmart (n.) A kind of cress, a pungent cruciferous plant, including several species of the genus Nasturtium..
Smart :: Smart (v. i.) To feel a lively, pungent local pain; -- said of some part of the body as the seat of irritation; as, my finger smarts; these wounds smart..
Smart :: Smart (v. i.) To feel a pungent pain of mind; to feel sharp pain or grief; to suffer; to feel the sting of evil.