Declension table of ?mahāvighna

Masculine	Singular	Dual	Plural
Nominative	mahāvighnaḥ	mahāvighnau	mahāvighnāḥ
Vocative	mahāvighna	mahāvighnau	mahāvighnāḥ
Accusative	mahāvighnam	mahāvighnau	mahāvighnān
Instrumental	mahāvighnena	mahāvighnābhyām	mahāvighnaiḥ mahāvighnebhiḥ
Dative	mahāvighnāya	mahāvighnābhyām	mahāvighnebhyaḥ
Ablative	mahāvighnāt	mahāvighnābhyām	mahāvighnebhyaḥ
Genitive	mahāvighnasya	mahāvighnayoḥ	mahāvighnānām
Locative	mahāvighne	mahāvighnayoḥ	mahāvighneṣu

Compound mahāvighna -

Adverb -mahāvighnam -mahāvighnāt