Declension table of ?grahatva

Neuter	Singular	Dual	Plural
Nominative	grahatvam	grahatve	grahatvāni
Vocative	grahatva	grahatve	grahatvāni
Accusative	grahatvam	grahatve	grahatvāni
Instrumental	grahatvena	grahatvābhyām	grahatvaiḥ
Dative	grahatvāya	grahatvābhyām	grahatvebhyaḥ
Ablative	grahatvāt	grahatvābhyām	grahatvebhyaḥ
Genitive	grahatvasya	grahatvayoḥ	grahatvānām
Locative	grahatve	grahatvayoḥ	grahatveṣu

Compound grahatva -

Adverb -grahatvam -grahatvāt