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arcosolium

noun
ar·​co·​so·​li·​um | \ ˌärkəˈsōlēəm\
plural arcosolia\ -​lēə \

Definition of arcosolium

: an arched cell in a Roman catacomb especially : one designed to receive a sarcophagus

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History and Etymology for arcosolium

New Latin, from arco- (from Latin arcus bow) + Latin solium seat, sarcophagus, from sedēre to sit

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