Declension table of ?dṛḍhapāda

Masculine	Singular	Dual	Plural
Nominative	dṛḍhapādaḥ	dṛḍhapādau	dṛḍhapādāḥ
Vocative	dṛḍhapāda	dṛḍhapādau	dṛḍhapādāḥ
Accusative	dṛḍhapādam	dṛḍhapādau	dṛḍhapādān
Instrumental	dṛḍhapādena	dṛḍhapādābhyām	dṛḍhapādaiḥ dṛḍhapādebhiḥ
Dative	dṛḍhapādāya	dṛḍhapādābhyām	dṛḍhapādebhyaḥ
Ablative	dṛḍhapādāt	dṛḍhapādābhyām	dṛḍhapādebhyaḥ
Genitive	dṛḍhapādasya	dṛḍhapādayoḥ	dṛḍhapādānām
Locative	dṛḍhapāde	dṛḍhapādayoḥ	dṛḍhapādeṣu

Compound dṛḍhapāda -

Adverb -dṛḍhapādam -dṛḍhapādāt