Declension table of ?prasthavat

Masculine	Singular	Dual	Plural
Nominative	prasthavān	prasthavantau	prasthavantaḥ
Vocative	prasthavan	prasthavantau	prasthavantaḥ
Accusative	prasthavantam	prasthavantau	prasthavataḥ
Instrumental	prasthavatā	prasthavadbhyām	prasthavadbhiḥ
Dative	prasthavate	prasthavadbhyām	prasthavadbhyaḥ
Ablative	prasthavataḥ	prasthavadbhyām	prasthavadbhyaḥ
Genitive	prasthavataḥ	prasthavatoḥ	prasthavatām
Locative	prasthavati	prasthavatoḥ	prasthavatsu

Compound prasthavat -

Adverb -prasthavantam