Declension table of ativyaya

Masculine	Singular	Dual	Plural
Nominative	ativyayaḥ	ativyayau	ativyayāḥ
Vocative	ativyaya	ativyayau	ativyayāḥ
Accusative	ativyayam	ativyayau	ativyayān
Instrumental	ativyayena	ativyayābhyām	ativyayaiḥ ativyayebhiḥ
Dative	ativyayāya	ativyayābhyām	ativyayebhyaḥ
Ablative	ativyayāt	ativyayābhyām	ativyayebhyaḥ
Genitive	ativyayasya	ativyayayoḥ	ativyayānām
Locative	ativyaye	ativyayayoḥ	ativyayeṣu

Compound ativyaya -

Adverb -ativyayam -ativyayāt