Declension table of ?ṛbhvan

Masculine	Singular	Dual	Plural
Nominative	ṛbhvā	ṛbhvāṇau	ṛbhvāṇaḥ
Vocative	ṛbhvan	ṛbhvāṇau	ṛbhvāṇaḥ
Accusative	ṛbhvāṇam	ṛbhvāṇau	ṛbhvaṇaḥ
Instrumental	ṛbhvaṇā	ṛbhvabhyām	ṛbhvabhiḥ
Dative	ṛbhvaṇe	ṛbhvabhyām	ṛbhvabhyaḥ
Ablative	ṛbhvaṇaḥ	ṛbhvabhyām	ṛbhvabhyaḥ
Genitive	ṛbhvaṇaḥ	ṛbhvaṇoḥ	ṛbhvaṇām
Locative	ṛbhvaṇi	ṛbhvaṇoḥ	ṛbhvasu

Compound ṛbhva -

Adverb -ṛbhvam