Declension table of ?sukhatva

Neuter	Singular	Dual	Plural
Nominative	sukhatvam	sukhatve	sukhatvāni
Vocative	sukhatva	sukhatve	sukhatvāni
Accusative	sukhatvam	sukhatve	sukhatvāni
Instrumental	sukhatvena	sukhatvābhyām	sukhatvaiḥ
Dative	sukhatvāya	sukhatvābhyām	sukhatvebhyaḥ
Ablative	sukhatvāt	sukhatvābhyām	sukhatvebhyaḥ
Genitive	sukhatvasya	sukhatvayoḥ	sukhatvānām
Locative	sukhatve	sukhatvayoḥ	sukhatveṣu

Compound sukhatva -

Adverb -sukhatvam -sukhatvāt