Declension table of ?advayu

Masculine	Singular	Dual	Plural
Nominative	advayuḥ	advayū	advayavaḥ
Vocative	advayo	advayū	advayavaḥ
Accusative	advayum	advayū	advayūn
Instrumental	advayunā	advayubhyām	advayubhiḥ
Dative	advayave	advayubhyām	advayubhyaḥ
Ablative	advayoḥ	advayubhyām	advayubhyaḥ
Genitive	advayoḥ	advayvoḥ	advayūnām
Locative	advayau	advayvoḥ	advayuṣu

Compound advayu -

Adverb -advayu