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com·plineor Com·pline (kŏm′plĭn, -plīn′) also com·plin or Com·plin (-plĭn)
1. The last of the canonical hours, recited or sung just before retiring.
2. The time of day appointed for this service.
[Middle English, alteration (probably influenced by matines, matins) of compli, from Old French complie, from Medieval Latin (hōra) complēta, final (hour), from Latin complētus, past participle of complēre, to complete; see complete.]
compline(ˈkɒmplɪn; -plaɪn) or
(Roman Catholic Church) RC Church the last of the seven canonical hours of the divine office
[C13: from Old French complie, from Medieval Latin hōra complēta, literally: the completed hour, from Latin complēre to fill up, complete]
com•pline(ˈkɒm plɪn, -plaɪn)
the last of the seven canonical hours, or the service for it.