Declension table of ?mahāmatsya

Masculine	Singular	Dual	Plural
Nominative	mahāmatsyaḥ	mahāmatsyau	mahāmatsyāḥ
Vocative	mahāmatsya	mahāmatsyau	mahāmatsyāḥ
Accusative	mahāmatsyam	mahāmatsyau	mahāmatsyān
Instrumental	mahāmatsyena	mahāmatsyābhyām	mahāmatsyaiḥ mahāmatsyebhiḥ
Dative	mahāmatsyāya	mahāmatsyābhyām	mahāmatsyebhyaḥ
Ablative	mahāmatsyāt	mahāmatsyābhyām	mahāmatsyebhyaḥ
Genitive	mahāmatsyasya	mahāmatsyayoḥ	mahāmatsyānām
Locative	mahāmatsye	mahāmatsyayoḥ	mahāmatsyeṣu

Compound mahāmatsya -

Adverb -mahāmatsyam -mahāmatsyāt