Declension table of ?arhatva

Neuter	Singular	Dual	Plural
Nominative	arhatvam	arhatve	arhatvāni
Vocative	arhatva	arhatve	arhatvāni
Accusative	arhatvam	arhatve	arhatvāni
Instrumental	arhatvena	arhatvābhyām	arhatvaiḥ
Dative	arhatvāya	arhatvābhyām	arhatvebhyaḥ
Ablative	arhatvāt	arhatvābhyām	arhatvebhyaḥ
Genitive	arhatvasya	arhatvayoḥ	arhatvānām
Locative	arhatve	arhatvayoḥ	arhatveṣu

Compound arhatva -

Adverb -arhatvam -arhatvāt