As adj.: (a) everlasting, unceasing; existing indefinitely; ~ pes, pes ~; (b) ~ maiden (virgin), Mary as perpetual virgin; ~ minde (memorie), everlasting remembrance; ~ peine, peine(s ~, damnation; ~ pes, pes ~, lasting peace; (c) continuous, uninterrupted; unfailing; continuous for life; regular [quot.: Jer. 52.34]; ~ prisoun, prisoun ~, imprisonment for life; vicar ~, a vicar appointed for life; (d) perpetually valid; irrevocable; ~ almes, a gift, esp. of land or property, given in perpetuity; in(to ~ almes, as a gift in perpetuity, to be held in perpetual tenure [see also almes(se 5.]; ~ chaunterie, a chantry endowed in perpetuity; ~ prest, prest ~, a priest appointed to a perpetually endowed chantry; (e) of the deity, his glory, etc.: eternal, without beginning or end; also as noun.

As adv.: (a) perpetually, forever; (b) continuously, constantly; (c) ?as adj.: perpetually; continuous(ly.