Declension table of ?rikvan

Masculine	Singular	Dual	Plural
Nominative	rikvā	rikvāṇau	rikvāṇaḥ
Vocative	rikvan	rikvāṇau	rikvāṇaḥ
Accusative	rikvāṇam	rikvāṇau	rikvaṇaḥ
Instrumental	rikvaṇā	rikvabhyām	rikvabhiḥ
Dative	rikvaṇe	rikvabhyām	rikvabhyaḥ
Ablative	rikvaṇaḥ	rikvabhyām	rikvabhyaḥ
Genitive	rikvaṇaḥ	rikvaṇoḥ	rikvaṇām
Locative	rikvaṇi	rikvaṇoḥ	rikvasu

Compound rikva -

Adverb -rikvam