Declension table of ?pīnatva

Neuter	Singular	Dual	Plural
Nominative	pīnatvam	pīnatve	pīnatvāni
Vocative	pīnatva	pīnatve	pīnatvāni
Accusative	pīnatvam	pīnatve	pīnatvāni
Instrumental	pīnatvena	pīnatvābhyām	pīnatvaiḥ
Dative	pīnatvāya	pīnatvābhyām	pīnatvebhyaḥ
Ablative	pīnatvāt	pīnatvābhyām	pīnatvebhyaḥ
Genitive	pīnatvasya	pīnatvayoḥ	pīnatvānām
Locative	pīnatve	pīnatvayoḥ	pīnatveṣu

Compound pīnatva -

Adverb -pīnatvam -pīnatvāt