Declension table of ?vasūka

Masculine	Singular	Dual	Plural
Nominative	vasūkaḥ	vasūkau	vasūkāḥ
Vocative	vasūka	vasūkau	vasūkāḥ
Accusative	vasūkam	vasūkau	vasūkān
Instrumental	vasūkena	vasūkābhyām	vasūkaiḥ vasūkebhiḥ
Dative	vasūkāya	vasūkābhyām	vasūkebhyaḥ
Ablative	vasūkāt	vasūkābhyām	vasūkebhyaḥ
Genitive	vasūkasya	vasūkayoḥ	vasūkānām
Locative	vasūke	vasūkayoḥ	vasūkeṣu

Compound vasūka -

Adverb -vasūkam -vasūkāt