Declension table of ?viparyāya

Masculine	Singular	Dual	Plural
Nominative	viparyāyaḥ	viparyāyau	viparyāyāḥ
Vocative	viparyāya	viparyāyau	viparyāyāḥ
Accusative	viparyāyam	viparyāyau	viparyāyān
Instrumental	viparyāyeṇa	viparyāyābhyām	viparyāyaiḥ viparyāyebhiḥ
Dative	viparyāyāya	viparyāyābhyām	viparyāyebhyaḥ
Ablative	viparyāyāt	viparyāyābhyām	viparyāyebhyaḥ
Genitive	viparyāyasya	viparyāyayoḥ	viparyāyāṇām
Locative	viparyāye	viparyāyayoḥ	viparyāyeṣu

Compound viparyāya -

Adverb -viparyāyam -viparyāyāt