Third-person singular simple present indicative form of scath

A small red worm or larva, used as bait for fish. / A young salmon or parr, in the stage in which it has transverse black bands, as if burned by a gridiron.

(slang, Britain, idiomatic) A person ignored or sidelined from an activity

The moon in its first or last quarter when only half the visible face is illuminated; a quarter moon. / Anything shaped like a crescent, especially the base of a fingernail. / A type of cookie