Declension table of ?vyayavat

Masculine	Singular	Dual	Plural
Nominative	vyayavān	vyayavantau	vyayavantaḥ
Vocative	vyayavan	vyayavantau	vyayavantaḥ
Accusative	vyayavantam	vyayavantau	vyayavataḥ
Instrumental	vyayavatā	vyayavadbhyām	vyayavadbhiḥ
Dative	vyayavate	vyayavadbhyām	vyayavadbhyaḥ
Ablative	vyayavataḥ	vyayavadbhyām	vyayavadbhyaḥ
Genitive	vyayavataḥ	vyayavatoḥ	vyayavatām
Locative	vyayavati	vyayavatoḥ	vyayavatsu

Compound vyayavat -

Adverb -vyayavantam