Declension table of ?vyāyudha

Masculine	Singular	Dual	Plural
Nominative	vyāyudhaḥ	vyāyudhau	vyāyudhāḥ
Vocative	vyāyudha	vyāyudhau	vyāyudhāḥ
Accusative	vyāyudham	vyāyudhau	vyāyudhān
Instrumental	vyāyudhena	vyāyudhābhyām	vyāyudhaiḥ vyāyudhebhiḥ
Dative	vyāyudhāya	vyāyudhābhyām	vyāyudhebhyaḥ
Ablative	vyāyudhāt	vyāyudhābhyām	vyāyudhebhyaḥ
Genitive	vyāyudhasya	vyāyudhayoḥ	vyāyudhānām
Locative	vyāyudhe	vyāyudhayoḥ	vyāyudheṣu

Compound vyāyudha -

Adverb -vyāyudham -vyāyudhāt