Compartment

google

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mid 16th century: from French compartiment, from Italian compartimento, from compartire, from late Latin compartiri ‘divide’.

wiktionary

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First attested 1564, from Middle French compartiment, from Italian compartimento, from Late Latin compartiri(“to divide with, to share with”), from com- + partiri(“to apportion, to divide, to share”)

etymonline

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compartment (n.)

a part separated from adjoining parts by a partition," "1560s, from French compartiment "part partitioned off" (16c.), through Italian compartimento, from Late Latin compartiri "to divide," from com-, here probably as an intensive prefix (see com-), + partis, genitive of pars "a part, piece, a share, a division" (from PIE root *pere- (2) "to grant, allot").