Declension table of ?dṛḍhacchada

Neuter	Singular	Dual	Plural
Nominative	dṛḍhacchadam	dṛḍhacchade	dṛḍhacchadāni
Vocative	dṛḍhacchada	dṛḍhacchade	dṛḍhacchadāni
Accusative	dṛḍhacchadam	dṛḍhacchade	dṛḍhacchadāni
Instrumental	dṛḍhacchadena	dṛḍhacchadābhyām	dṛḍhacchadaiḥ
Dative	dṛḍhacchadāya	dṛḍhacchadābhyām	dṛḍhacchadebhyaḥ
Ablative	dṛḍhacchadāt	dṛḍhacchadābhyām	dṛḍhacchadebhyaḥ
Genitive	dṛḍhacchadasya	dṛḍhacchadayoḥ	dṛḍhacchadānām
Locative	dṛḍhacchade	dṛḍhacchadayoḥ	dṛḍhacchadeṣu

Compound dṛḍhacchada -

Adverb -dṛḍhacchadam -dṛḍhacchadāt