Declension table of ṛṣva

Masculine	Singular	Dual	Plural
Nominative	ṛṣvaḥ	ṛṣvau	ṛṣvāḥ
Vocative	ṛṣva	ṛṣvau	ṛṣvāḥ
Accusative	ṛṣvam	ṛṣvau	ṛṣvān
Instrumental	ṛṣveṇa	ṛṣvābhyām	ṛṣvaiḥ ṛṣvebhiḥ
Dative	ṛṣvāya	ṛṣvābhyām	ṛṣvebhyaḥ
Ablative	ṛṣvāt	ṛṣvābhyām	ṛṣvebhyaḥ
Genitive	ṛṣvasya	ṛṣvayoḥ	ṛṣvāṇām
Locative	ṛṣve	ṛṣvayoḥ	ṛṣveṣu

Compound ṛṣva -

Adverb -ṛṣvam -ṛṣvāt