Declension table of ?dhṛṣṇutva

Neuter	Singular	Dual	Plural
Nominative	dhṛṣṇutvam	dhṛṣṇutve	dhṛṣṇutvāni
Vocative	dhṛṣṇutva	dhṛṣṇutve	dhṛṣṇutvāni
Accusative	dhṛṣṇutvam	dhṛṣṇutve	dhṛṣṇutvāni
Instrumental	dhṛṣṇutvena	dhṛṣṇutvābhyām	dhṛṣṇutvaiḥ
Dative	dhṛṣṇutvāya	dhṛṣṇutvābhyām	dhṛṣṇutvebhyaḥ
Ablative	dhṛṣṇutvāt	dhṛṣṇutvābhyām	dhṛṣṇutvebhyaḥ
Genitive	dhṛṣṇutvasya	dhṛṣṇutvayoḥ	dhṛṣṇutvānām
Locative	dhṛṣṇutve	dhṛṣṇutvayoḥ	dhṛṣṇutveṣu

Compound dhṛṣṇutva -

Adverb -dhṛṣṇutvam -dhṛṣṇutvāt