Declension table of ?vāyavya

Masculine	Singular	Dual	Plural
Nominative	vāyavyaḥ	vāyavyau	vāyavyāḥ
Vocative	vāyavya	vāyavyau	vāyavyāḥ
Accusative	vāyavyam	vāyavyau	vāyavyān
Instrumental	vāyavyena	vāyavyābhyām	vāyavyaiḥ vāyavyebhiḥ
Dative	vāyavyāya	vāyavyābhyām	vāyavyebhyaḥ
Ablative	vāyavyāt	vāyavyābhyām	vāyavyebhyaḥ
Genitive	vāyavyasya	vāyavyayoḥ	vāyavyānām
Locative	vāyavye	vāyavyayoḥ	vāyavyeṣu

Compound vāyavya -

Adverb -vāyavyam -vāyavyāt