Declension table of ?dṛḍhavapus

Neuter	Singular	Dual	Plural
Nominative	dṛḍhavapuḥ	dṛḍhavapuṣī	dṛḍhavapūṃṣi
Vocative	dṛḍhavapuḥ	dṛḍhavapuṣī	dṛḍhavapūṃṣi
Accusative	dṛḍhavapuḥ	dṛḍhavapuṣī	dṛḍhavapūṃṣi
Instrumental	dṛḍhavapuṣā	dṛḍhavapurbhyām	dṛḍhavapurbhiḥ
Dative	dṛḍhavapuṣe	dṛḍhavapurbhyām	dṛḍhavapurbhyaḥ
Ablative	dṛḍhavapuṣaḥ	dṛḍhavapurbhyām	dṛḍhavapurbhyaḥ
Genitive	dṛḍhavapuṣaḥ	dṛḍhavapuṣoḥ	dṛḍhavapuṣām
Locative	dṛḍhavapuṣi	dṛḍhavapuṣoḥ	dṛḍhavapuḥṣu

Compound dṛḍhavapus -

Adverb -dṛḍhavapus