Declension table of ?dru

Masculine	Singular	Dual	Plural
Nominative	druḥ	drū	dravaḥ
Vocative	dro	drū	dravaḥ
Accusative	drum	drū	drūn
Instrumental	druṇā	drubhyām	drubhiḥ
Dative	drave	drubhyām	drubhyaḥ
Ablative	droḥ	drubhyām	drubhyaḥ
Genitive	droḥ	drvoḥ	drūṇām
Locative	drau	drvoḥ	druṣu

Compound dru -

Adverb -dru