Declension table of ?ativeya

Neuter	Singular	Dual	Plural
Nominative	ativeyam	ativeye	ativeyāni
Vocative	ativeya	ativeye	ativeyāni
Accusative	ativeyam	ativeye	ativeyāni
Instrumental	ativeyena	ativeyābhyām	ativeyaiḥ
Dative	ativeyāya	ativeyābhyām	ativeyebhyaḥ
Ablative	ativeyāt	ativeyābhyām	ativeyebhyaḥ
Genitive	ativeyasya	ativeyayoḥ	ativeyānām
Locative	ativeye	ativeyayoḥ	ativeyeṣu

Compound ativeya -

Adverb -ativeyam -ativeyāt