Declension table of ?yayu

Neuter	Singular	Dual	Plural
Nominative	yayu	yayunī	yayūni
Vocative	yayu	yayunī	yayūni
Accusative	yayu	yayunī	yayūni
Instrumental	yayunā	yayubhyām	yayubhiḥ
Dative	yayune	yayubhyām	yayubhyaḥ
Ablative	yayunaḥ	yayubhyām	yayubhyaḥ
Genitive	yayunaḥ	yayunoḥ	yayūnām
Locative	yayuni	yayunoḥ	yayuṣu

Compound yayu -

Adverb -yayu