Declension table of ?dṛḍhasandha

Masculine	Singular	Dual	Plural
Nominative	dṛḍhasandhaḥ	dṛḍhasandhau	dṛḍhasandhāḥ
Vocative	dṛḍhasandha	dṛḍhasandhau	dṛḍhasandhāḥ
Accusative	dṛḍhasandham	dṛḍhasandhau	dṛḍhasandhān
Instrumental	dṛḍhasandhena	dṛḍhasandhābhyām	dṛḍhasandhaiḥ dṛḍhasandhebhiḥ
Dative	dṛḍhasandhāya	dṛḍhasandhābhyām	dṛḍhasandhebhyaḥ
Ablative	dṛḍhasandhāt	dṛḍhasandhābhyām	dṛḍhasandhebhyaḥ
Genitive	dṛḍhasandhasya	dṛḍhasandhayoḥ	dṛḍhasandhānām
Locative	dṛḍhasandhe	dṛḍhasandhayoḥ	dṛḍhasandheṣu

Compound dṛḍhasandha -

Adverb -dṛḍhasandham -dṛḍhasandhāt