[ac.cu.sa.tive] adj [ME, fr. MF or L; MF accusatif, fr. L accusativus, fr. accusatus, pp. of accusare] (15c) 1: of, relating to, or being the grammatical case that marks the direct object of a verb or the object of any of several prepositions
2: accusatory
[2]accusative n (ca. 1620): the accusative case of a language: a form in the accusative case