Declension table of ?dṛpthavat

Masculine	Singular	Dual	Plural
Nominative	dṛpthavān	dṛpthavantau	dṛpthavantaḥ
Vocative	dṛpthavan	dṛpthavantau	dṛpthavantaḥ
Accusative	dṛpthavantam	dṛpthavantau	dṛpthavataḥ
Instrumental	dṛpthavatā	dṛpthavadbhyām	dṛpthavadbhiḥ
Dative	dṛpthavate	dṛpthavadbhyām	dṛpthavadbhyaḥ
Ablative	dṛpthavataḥ	dṛpthavadbhyām	dṛpthavadbhyaḥ
Genitive	dṛpthavataḥ	dṛpthavatoḥ	dṛpthavatām
Locative	dṛpthavati	dṛpthavatoḥ	dṛpthavatsu

Compound dṛpthavat -

Adverb -dṛpthavantam