Declension table of pitṛtva

Neuter	Singular	Dual	Plural
Nominative	pitṛtvam	pitṛtve	pitṛtvāni
Vocative	pitṛtva	pitṛtve	pitṛtvāni
Accusative	pitṛtvam	pitṛtve	pitṛtvāni
Instrumental	pitṛtvena	pitṛtvābhyām	pitṛtvaiḥ
Dative	pitṛtvāya	pitṛtvābhyām	pitṛtvebhyaḥ
Ablative	pitṛtvāt	pitṛtvābhyām	pitṛtvebhyaḥ
Genitive	pitṛtvasya	pitṛtvayoḥ	pitṛtvānām
Locative	pitṛtve	pitṛtvayoḥ	pitṛtveṣu

Compound pitṛtva -

Adverb -pitṛtvam -pitṛtvāt