Declension table of vasu

Masculine	Singular	Dual	Plural
Nominative	vasuḥ	vasū	vasavaḥ
Vocative	vaso	vasū	vasavaḥ
Accusative	vasum	vasū	vasūn
Instrumental	vasunā	vasubhyām	vasubhiḥ
Dative	vasave	vasubhyām	vasubhyaḥ
Ablative	vasoḥ	vasubhyām	vasubhyaḥ
Genitive	vasoḥ	vasvoḥ	vasūnām
Locative	vasau	vasvoḥ	vasuṣu

Compound vasu -

Adverb -vasu