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: constituting a legal accompaniment
: auxiliary, accessory
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accessory, auxiliary, peripheral, supplemental, supplementary
chief, main, principal
14th century, in the meaning defined at sense 1
Middle English apertenant, from Anglo-French appurtenant, present participle of apurtenir to belong — more at appertain
Anglo-French apurtenant, alteration of Old French apartenant, present participle of apartenir to belong, appertain
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: annexed or belonging to a more important property
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characteristic trappings or dress
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