Declension table of ?rāvan

Masculine	Singular	Dual	Plural
Nominative	rāvā	rāvāṇau	rāvāṇaḥ
Vocative	rāvan	rāvāṇau	rāvāṇaḥ
Accusative	rāvāṇam	rāvāṇau	rāvṇaḥ
Instrumental	rāvṇā	rāvabhyām	rāvabhiḥ
Dative	rāvṇe	rāvabhyām	rāvabhyaḥ
Ablative	rāvṇaḥ	rāvabhyām	rāvabhyaḥ
Genitive	rāvṇaḥ	rāvṇoḥ	rāvṇām
Locative	rāvṇi rāvaṇi	rāvṇoḥ	rāvasu

Compound rāva -

Adverb -rāvam