noun Roman Catholic Church.

the office of matins, consisting of nine psalms and either three or nine lessons.

Origin of nocturn

before 1150; Middle English nocturne < Medieval Latin nocturna, noun use of feminine of Latin nocturnus by night; replacing Old English noctern < Medieval Latin, as above Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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Historical Examples of nocturn

British Dictionary definitions for nocturn



RC Church any of the main sections of the office of matins

Word Origin for nocturn

C13: from Medieval Latin nocturna, from Latin nocturnus nocturnal, from nox night
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for nocturn

a division of the office of matins, early 13c., from Old French nocturne "evening service; curfew," from Medieval Latin nocturna, "group of Psalms used in the nocturns," from Latin nocturnus (see nocturnal).

Online Etymology Dictionary, © 2010 Douglas Harper