Declension table of ?pratavas

Neuter	Singular	Dual	Plural
Nominative	pratavat	pratoṣī	pratavāṃsi
Vocative	pratavat	pratoṣī	pratavāṃsi
Accusative	pratavat	pratoṣī	pratavāṃsi
Instrumental	pratoṣā	pratavadbhyām	pratavadbhiḥ
Dative	pratoṣe	pratavadbhyām	pratavadbhyaḥ
Ablative	pratoṣaḥ	pratavadbhyām	pratavadbhyaḥ
Genitive	pratoṣaḥ	pratoṣoḥ	pratoṣām
Locative	pratoṣi	pratoṣoḥ	pratavatsu

Compound pratavat -

Adverb -pratavat