Declension table of ?parārthatva

Neuter	Singular	Dual	Plural
Nominative	parārthatvam	parārthatve	parārthatvāni
Vocative	parārthatva	parārthatve	parārthatvāni
Accusative	parārthatvam	parārthatve	parārthatvāni
Instrumental	parārthatvena	parārthatvābhyām	parārthatvaiḥ
Dative	parārthatvāya	parārthatvābhyām	parārthatvebhyaḥ
Ablative	parārthatvāt	parārthatvābhyām	parārthatvebhyaḥ
Genitive	parārthatvasya	parārthatvayoḥ	parārthatvānām
Locative	parārthatve	parārthatvayoḥ	parārthatveṣu

Compound parārthatva -

Adverb -parārthatvam -parārthatvāt