Declension table of ?mātṛviṣṇu

Masculine	Singular	Dual	Plural
Nominative	mātṛviṣṇuḥ	mātṛviṣṇū	mātṛviṣṇavaḥ
Vocative	mātṛviṣṇo	mātṛviṣṇū	mātṛviṣṇavaḥ
Accusative	mātṛviṣṇum	mātṛviṣṇū	mātṛviṣṇūn
Instrumental	mātṛviṣṇunā	mātṛviṣṇubhyām	mātṛviṣṇubhiḥ
Dative	mātṛviṣṇave	mātṛviṣṇubhyām	mātṛviṣṇubhyaḥ
Ablative	mātṛviṣṇoḥ	mātṛviṣṇubhyām	mātṛviṣṇubhyaḥ
Genitive	mātṛviṣṇoḥ	mātṛviṣṇvoḥ	mātṛviṣṇūnām
Locative	mātṛviṣṇau	mātṛviṣṇvoḥ	mātṛviṣṇuṣu

Compound mātṛviṣṇu -

Adverb -mātṛviṣṇu