Declension table of ?darman

Masculine	Singular	Dual	Plural
Nominative	darmā	darmāṇau	darmāṇaḥ
Vocative	darman	darmāṇau	darmāṇaḥ
Accusative	darmāṇam	darmāṇau	darmaṇaḥ
Instrumental	darmaṇā	darmabhyām	darmabhiḥ
Dative	darmaṇe	darmabhyām	darmabhyaḥ
Ablative	darmaṇaḥ	darmabhyām	darmabhyaḥ
Genitive	darmaṇaḥ	darmaṇoḥ	darmaṇām
Locative	darmaṇi	darmaṇoḥ	darmasu

Compound darma -

Adverb -darmam