a gliding, slipping, or gradual falling; an unobserved or imperceptible progress or passing away,; -- restricted usually to immaterial things, or to figurative uses.-a slip; an error; a fault; a failing in duty; a slight deviation from truth or rectitude.-the termination of a right or privilege through neglect to exercise it within the limited time, or through failure of some contingency; hence, the devolution of a right or privilege.-a fall or apostasy.-to pass slowly and smoothly downward, backward, or away; to slip downward, backward, or away; to glide; -- mostly restricted to figurative uses.-to slide or slip in moral conduct; to fail in duty; to fall from virtue; to deviate from rectitude; to commit a fault by inadvertence or mistake.-to fall or pass from one proprietor to another, or from the original destination, by the omission, negligence, or failure of some one, as a patron, a legatee, etc.-to become ineffectual or void; to fall.-to let slip; to permit to devolve on another; to allow to pass.-to surprise in a fault or error; hence, to surprise or catch, as an offender.