Declension table of ?phaṇtavat

Masculine	Singular	Dual	Plural
Nominative	phaṇtavān	phaṇtavantau	phaṇtavantaḥ
Vocative	phaṇtavan	phaṇtavantau	phaṇtavantaḥ
Accusative	phaṇtavantam	phaṇtavantau	phaṇtavataḥ
Instrumental	phaṇtavatā	phaṇtavadbhyām	phaṇtavadbhiḥ
Dative	phaṇtavate	phaṇtavadbhyām	phaṇtavadbhyaḥ
Ablative	phaṇtavataḥ	phaṇtavadbhyām	phaṇtavadbhyaḥ
Genitive	phaṇtavataḥ	phaṇtavatoḥ	phaṇtavatām
Locative	phaṇtavati	phaṇtavatoḥ	phaṇtavatsu

Compound phaṇtavat -

Adverb -phaṇtavantam