Declension table of ?dṛḍhacchada

Masculine	Singular	Dual	Plural
Nominative	dṛḍhacchadaḥ	dṛḍhacchadau	dṛḍhacchadāḥ
Vocative	dṛḍhacchada	dṛḍhacchadau	dṛḍhacchadāḥ
Accusative	dṛḍhacchadam	dṛḍhacchadau	dṛḍhacchadān
Instrumental	dṛḍhacchadena	dṛḍhacchadābhyām	dṛḍhacchadaiḥ dṛḍhacchadebhiḥ
Dative	dṛḍhacchadāya	dṛḍhacchadābhyām	dṛḍhacchadebhyaḥ
Ablative	dṛḍhacchadāt	dṛḍhacchadābhyām	dṛḍhacchadebhyaḥ
Genitive	dṛḍhacchadasya	dṛḍhacchadayoḥ	dṛḍhacchadānām
Locative	dṛḍhacchade	dṛḍhacchadayoḥ	dṛḍhacchadeṣu

Compound dṛḍhacchada -

Adverb -dṛḍhacchadam -dṛḍhacchadāt