Declension table of ?dhruvatva

Neuter	Singular	Dual	Plural
Nominative	dhruvatvam	dhruvatve	dhruvatvāni
Vocative	dhruvatva	dhruvatve	dhruvatvāni
Accusative	dhruvatvam	dhruvatve	dhruvatvāni
Instrumental	dhruvatvena	dhruvatvābhyām	dhruvatvaiḥ
Dative	dhruvatvāya	dhruvatvābhyām	dhruvatvebhyaḥ
Ablative	dhruvatvāt	dhruvatvābhyām	dhruvatvebhyaḥ
Genitive	dhruvatvasya	dhruvatvayoḥ	dhruvatvānām
Locative	dhruvatve	dhruvatvayoḥ	dhruvatveṣu

Compound dhruvatva -

Adverb -dhruvatvam -dhruvatvāt