Declension table of ?rucitva

Neuter	Singular	Dual	Plural
Nominative	rucitvam	rucitve	rucitvāni
Vocative	rucitva	rucitve	rucitvāni
Accusative	rucitvam	rucitve	rucitvāni
Instrumental	rucitvena	rucitvābhyām	rucitvaiḥ
Dative	rucitvāya	rucitvābhyām	rucitvebhyaḥ
Ablative	rucitvāt	rucitvābhyām	rucitvebhyaḥ
Genitive	rucitvasya	rucitvayoḥ	rucitvānām
Locative	rucitve	rucitvayoḥ	rucitveṣu

Compound rucitva -

Adverb -rucitvam -rucitvāt