Declension table of ?mahāyudha

Neuter	Singular	Dual	Plural
Nominative	mahāyudham	mahāyudhe	mahāyudhāni
Vocative	mahāyudha	mahāyudhe	mahāyudhāni
Accusative	mahāyudham	mahāyudhe	mahāyudhāni
Instrumental	mahāyudhena	mahāyudhābhyām	mahāyudhaiḥ
Dative	mahāyudhāya	mahāyudhābhyām	mahāyudhebhyaḥ
Ablative	mahāyudhāt	mahāyudhābhyām	mahāyudhebhyaḥ
Genitive	mahāyudhasya	mahāyudhayoḥ	mahāyudhānām
Locative	mahāyudhe	mahāyudhayoḥ	mahāyudheṣu

Compound mahāyudha -

Adverb -mahāyudham -mahāyudhāt