Declension table of ?dṛḍhadhanvan

Neuter	Singular	Dual	Plural
Nominative	dṛḍhadhanva	dṛḍhadhanvnī dṛḍhadhanvanī	dṛḍhadhanvāni
Vocative	dṛḍhadhanvan dṛḍhadhanva	dṛḍhadhanvnī dṛḍhadhanvanī	dṛḍhadhanvāni
Accusative	dṛḍhadhanva	dṛḍhadhanvnī dṛḍhadhanvanī	dṛḍhadhanvāni
Instrumental	dṛḍhadhanvanā	dṛḍhadhanvabhyām	dṛḍhadhanvabhiḥ
Dative	dṛḍhadhanvane	dṛḍhadhanvabhyām	dṛḍhadhanvabhyaḥ
Ablative	dṛḍhadhanvanaḥ	dṛḍhadhanvabhyām	dṛḍhadhanvabhyaḥ
Genitive	dṛḍhadhanvanaḥ	dṛḍhadhanvanoḥ	dṛḍhadhanvanām
Locative	dṛḍhadhanvani	dṛḍhadhanvanoḥ	dṛḍhadhanvasu

Compound dṛḍhadhanva -

Adverb -dṛḍhadhanva -dṛḍhadhanvam