Declension table of ?vajrāyudha

Masculine	Singular	Dual	Plural
Nominative	vajrāyudhaḥ	vajrāyudhau	vajrāyudhāḥ
Vocative	vajrāyudha	vajrāyudhau	vajrāyudhāḥ
Accusative	vajrāyudham	vajrāyudhau	vajrāyudhān
Instrumental	vajrāyudhena	vajrāyudhābhyām	vajrāyudhaiḥ vajrāyudhebhiḥ
Dative	vajrāyudhāya	vajrāyudhābhyām	vajrāyudhebhyaḥ
Ablative	vajrāyudhāt	vajrāyudhābhyām	vajrāyudhebhyaḥ
Genitive	vajrāyudhasya	vajrāyudhayoḥ	vajrāyudhānām
Locative	vajrāyudhe	vajrāyudhayoḥ	vajrāyudheṣu

Compound vajrāyudha -

Adverb -vajrāyudham -vajrāyudhāt