Declension table of dṛḍhatva

Neuter	Singular	Dual	Plural
Nominative	dṛḍhatvam	dṛḍhatve	dṛḍhatvāni
Vocative	dṛḍhatva	dṛḍhatve	dṛḍhatvāni
Accusative	dṛḍhatvam	dṛḍhatve	dṛḍhatvāni
Instrumental	dṛḍhatvena	dṛḍhatvābhyām	dṛḍhatvaiḥ
Dative	dṛḍhatvāya	dṛḍhatvābhyām	dṛḍhatvebhyaḥ
Ablative	dṛḍhatvāt	dṛḍhatvābhyām	dṛḍhatvebhyaḥ
Genitive	dṛḍhatvasya	dṛḍhatvayoḥ	dṛḍhatvānām
Locative	dṛḍhatve	dṛḍhatvayoḥ	dṛḍhatveṣu

Compound dṛḍhatva -

Adverb -dṛḍhatvam -dṛḍhatvāt