Declension table of ?vajrakavaca

Masculine	Singular	Dual	Plural
Nominative	vajrakavacaḥ	vajrakavacau	vajrakavacāḥ
Vocative	vajrakavaca	vajrakavacau	vajrakavacāḥ
Accusative	vajrakavacam	vajrakavacau	vajrakavacān
Instrumental	vajrakavacena	vajrakavacābhyām	vajrakavacaiḥ vajrakavacebhiḥ
Dative	vajrakavacāya	vajrakavacābhyām	vajrakavacebhyaḥ
Ablative	vajrakavacāt	vajrakavacābhyām	vajrakavacebhyaḥ
Genitive	vajrakavacasya	vajrakavacayoḥ	vajrakavacānām
Locative	vajrakavace	vajrakavacayoḥ	vajrakavaceṣu

Compound vajrakavaca -

Adverb -vajrakavacam -vajrakavacāt