Declension table of ?sapitva

Neuter	Singular	Dual	Plural
Nominative	sapitvam	sapitve	sapitvāni
Vocative	sapitva	sapitve	sapitvāni
Accusative	sapitvam	sapitve	sapitvāni
Instrumental	sapitvena	sapitvābhyām	sapitvaiḥ
Dative	sapitvāya	sapitvābhyām	sapitvebhyaḥ
Ablative	sapitvāt	sapitvābhyām	sapitvebhyaḥ
Genitive	sapitvasya	sapitvayoḥ	sapitvānām
Locative	sapitve	sapitvayoḥ	sapitveṣu

Compound sapitva -

Adverb -sapitvam -sapitvāt