Declension table of ?ṛṣidviṣ

Masculine	Singular	Dual	Plural
Nominative	ṛṣidviṭ	ṛṣidviṣau	ṛṣidviṣaḥ
Vocative	ṛṣidviṭ	ṛṣidviṣau	ṛṣidviṣaḥ
Accusative	ṛṣidviṣam	ṛṣidviṣau	ṛṣidviṣaḥ
Instrumental	ṛṣidviṣā	ṛṣidviḍbhyām	ṛṣidviḍbhiḥ
Dative	ṛṣidviṣe	ṛṣidviḍbhyām	ṛṣidviḍbhyaḥ
Ablative	ṛṣidviṣaḥ	ṛṣidviḍbhyām	ṛṣidviḍbhyaḥ
Genitive	ṛṣidviṣaḥ	ṛṣidviṣoḥ	ṛṣidviṣām
Locative	ṛṣidviṣi	ṛṣidviṣoḥ	ṛṣidviṭsu

Compound ṛṣidviṭ -

Adverb -ṛṣidviṭ