Declension table of ?vaiśastya

Neuter	Singular	Dual	Plural
Nominative	vaiśastyam	vaiśastye	vaiśastyāni
Vocative	vaiśastya	vaiśastye	vaiśastyāni
Accusative	vaiśastyam	vaiśastye	vaiśastyāni
Instrumental	vaiśastyena	vaiśastyābhyām	vaiśastyaiḥ
Dative	vaiśastyāya	vaiśastyābhyām	vaiśastyebhyaḥ
Ablative	vaiśastyāt	vaiśastyābhyām	vaiśastyebhyaḥ
Genitive	vaiśastyasya	vaiśastyayoḥ	vaiśastyānām
Locative	vaiśastye	vaiśastyayoḥ	vaiśastyeṣu

Compound vaiśastya -

Adverb -vaiśastyam -vaiśastyāt