caster (n.1)

also sometimes castor, "person or thing that casts," late 14c., agent noun from cast (v.). The meaning "pepper shaker, small perforated container" is from 1670s, on the notion of something that "throws" the powder, liquid, etc., when needed.

caster (n.2)

"small wheel and swivel attached to the leg of a piece of furniture," 1748, agent noun from cast (v.) in the old sense of "turn." Also sometimes castor.

updated on November 12, 2022