Declension table of vāyasa

Neuter	Singular	Dual	Plural
Nominative	vāyasam	vāyase	vāyasāni
Vocative	vāyasa	vāyase	vāyasāni
Accusative	vāyasam	vāyase	vāyasāni
Instrumental	vāyasena	vāyasābhyām	vāyasaiḥ
Dative	vāyasāya	vāyasābhyām	vāyasebhyaḥ
Ablative	vāyasāt	vāyasābhyām	vāyasebhyaḥ
Genitive	vāyasasya	vāyasayoḥ	vāyasānām
Locative	vāyase	vāyasayoḥ	vāyaseṣu

Compound vāyasa -

Adverb -vāyasam -vāyasāt