Declension table of arma

Masculine	Singular	Dual	Plural
Nominative	armaḥ	armau	armāḥ
Vocative	arma	armau	armāḥ
Accusative	armam	armau	armān
Instrumental	armeṇa	armābhyām	armaiḥ armebhiḥ
Dative	armāya	armābhyām	armebhyaḥ
Ablative	armāt	armābhyām	armebhyaḥ
Genitive	armasya	armayoḥ	armāṇām
Locative	arme	armayoḥ	armeṣu

Compound arma -

Adverb -armam -armāt