Толковый словарь английского языка Oxford English Reference - cloven

adj. split, partly divided. Phrases and idioms cloven hoof (or foot) the divided hoof of ruminant quadrupeds (e.g. oxen, sheep, goats); also ascribed to the god Pan, and so to the Devil. show the cloven hoof reveal one's evil nature. Derivatives cloven-footed adj. cloven-hoofed adj. Etymology: past part. of CLEAVE(1)