Declension table of ?oṇtavat

Masculine	Singular	Dual	Plural
Nominative	oṇtavān	oṇtavantau	oṇtavantaḥ
Vocative	oṇtavan	oṇtavantau	oṇtavantaḥ
Accusative	oṇtavantam	oṇtavantau	oṇtavataḥ
Instrumental	oṇtavatā	oṇtavadbhyām	oṇtavadbhiḥ
Dative	oṇtavate	oṇtavadbhyām	oṇtavadbhyaḥ
Ablative	oṇtavataḥ	oṇtavadbhyām	oṇtavadbhyaḥ
Genitive	oṇtavataḥ	oṇtavatoḥ	oṇtavatām
Locative	oṇtavati	oṇtavatoḥ	oṇtavatsu

Compound oṇtavat -

Adverb -oṇtavantam