Declension table of ?rerivan

Neuter	Singular	Dual	Plural
Nominative	reriva	rerivṇī rerivaṇī	rerivāṇi
Vocative	rerivan reriva	rerivṇī rerivaṇī	rerivāṇi
Accusative	reriva	rerivṇī rerivaṇī	rerivāṇi
Instrumental	rerivṇā	rerivabhyām	rerivabhiḥ
Dative	rerivṇe	rerivabhyām	rerivabhyaḥ
Ablative	rerivṇaḥ	rerivabhyām	rerivabhyaḥ
Genitive	rerivṇaḥ	rerivṇoḥ	rerivṇām
Locative	rerivṇi rerivaṇi	rerivṇoḥ	rerivasu

Compound reriva -

Adverb -reriva -rerivam