Declension table of ?mahātyaya

Masculine	Singular	Dual	Plural
Nominative	mahātyayaḥ	mahātyayau	mahātyayāḥ
Vocative	mahātyaya	mahātyayau	mahātyayāḥ
Accusative	mahātyayam	mahātyayau	mahātyayān
Instrumental	mahātyayena	mahātyayābhyām	mahātyayaiḥ mahātyayebhiḥ
Dative	mahātyayāya	mahātyayābhyām	mahātyayebhyaḥ
Ablative	mahātyayāt	mahātyayābhyām	mahātyayebhyaḥ
Genitive	mahātyayasya	mahātyayayoḥ	mahātyayānām
Locative	mahātyaye	mahātyayayoḥ	mahātyayeṣu

Compound mahātyaya -

Adverb -mahātyayam -mahātyayāt