Declension table of ?rāvya

Neuter	Singular	Dual	Plural
Nominative	rāvyam	rāvye	rāvyāṇi
Vocative	rāvya	rāvye	rāvyāṇi
Accusative	rāvyam	rāvye	rāvyāṇi
Instrumental	rāvyeṇa	rāvyābhyām	rāvyaiḥ
Dative	rāvyāya	rāvyābhyām	rāvyebhyaḥ
Ablative	rāvyāt	rāvyābhyām	rāvyebhyaḥ
Genitive	rāvyasya	rāvyayoḥ	rāvyāṇām
Locative	rāvye	rāvyayoḥ	rāvyeṣu

Compound rāvya -

Adverb -rāvyam -rāvyāt