First attested in the beginning of the 17ᵗʰ century; borrowed from Latin castīgātus, perfect passive participle of castīgō (“to reprove”) (see -ate (verb-forming suffix) and -ate (adjective-forming suffix)), from castus (“pure, chaste”), from Proto-Indo-European *ḱes- (“to cut”). Doublet of chastise and chasten, taken through Old French. See also chaste.