Declension table of ?vajradru

Masculine	Singular	Dual	Plural
Nominative	vajradruḥ	vajradrū	vajradravaḥ
Vocative	vajradro	vajradrū	vajradravaḥ
Accusative	vajradrum	vajradrū	vajradrūn
Instrumental	vajradruṇā	vajradrubhyām	vajradrubhiḥ
Dative	vajradrave	vajradrubhyām	vajradrubhyaḥ
Ablative	vajradroḥ	vajradrubhyām	vajradrubhyaḥ
Genitive	vajradroḥ	vajradrvoḥ	vajradrūṇām
Locative	vajradrau	vajradrvoḥ	vajradruṣu

Compound vajradru -

Adverb -vajradru