Declension table of druma

Masculine	Singular	Dual	Plural
Nominative	drumaḥ	drumau	drumāḥ
Vocative	druma	drumau	drumāḥ
Accusative	drumam	drumau	drumān
Instrumental	drumeṇa	drumābhyām	drumaiḥ drumebhiḥ
Dative	drumāya	drumābhyām	drumebhyaḥ
Ablative	drumāt	drumābhyām	drumebhyaḥ
Genitive	drumasya	drumayoḥ	drumāṇām
Locative	drume	drumayoḥ	drumeṣu

Compound druma -

Adverb -drumam -drumāt