Declension table of ?vasavya

Masculine	Singular	Dual	Plural
Nominative	vasavyaḥ	vasavyau	vasavyāḥ
Vocative	vasavya	vasavyau	vasavyāḥ
Accusative	vasavyam	vasavyau	vasavyān
Instrumental	vasavyena	vasavyābhyām	vasavyaiḥ vasavyebhiḥ
Dative	vasavyāya	vasavyābhyām	vasavyebhyaḥ
Ablative	vasavyāt	vasavyābhyām	vasavyebhyaḥ
Genitive	vasavyasya	vasavyayoḥ	vasavyānām
Locative	vasavye	vasavyayoḥ	vasavyeṣu

Compound vasavya -

Adverb -vasavyam -vasavyāt