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ca·sernalso ca·serne (kə-zûrn′)
A military barracks or garrison.
[French caserne, from Old French, small room for the night watch, from Old Provençal cazerna, group of four men, from Latin quaterna, four together, from Latin quaternī, by four; see quaternion.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Military) (formerly) a billet or accommodation for soldiers in a town
[C17: from French caserne, from Old Provençal cazerna group of four men, ultimately from Latin quattuor four]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a lodging for soldiers in a garrison town.
[1690–1700; < French caserne]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.