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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.]
(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]
a lodging for soldiers in a garrison town.
[1690–1700; < French caserne]