Declension table of ?arman

Neuter	Singular	Dual	Plural
Nominative	arma	armaṇī	armāṇi
Vocative	arman arma	armaṇī	armāṇi
Accusative	arma	armaṇī	armāṇi
Instrumental	armaṇā	armabhyām	armabhiḥ
Dative	armaṇe	armabhyām	armabhyaḥ
Ablative	armaṇaḥ	armabhyām	armabhyaḥ
Genitive	armaṇaḥ	armaṇoḥ	armaṇām
Locative	armaṇi	armaṇoḥ	armasu

Compound arma -

Adverb -arma -armam