/ əˈkjuːzətɪv; NAmE / noun
( grammar ) ( in some languages ) the form of a noun, a pronoun or an adjective when it is the direct object of a verb, or connected with the direct object :
In the sentence, 'I saw him today', the word 'him' is in the accusative .
—compare ablative , dative , genitive , nominative , vocative
► ac·cusa·tive adjective
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WORD ORIGIN
late Middle English : from Latin (casus) accusativus , literally relating to an accusation or (legal) case, translating Greek (ptōsis) aitiatikē (the case) showing cause.