Declension table of ?aśvayu

Neuter	Singular	Dual	Plural
Nominative	aśvayu	aśvayunī	aśvayūni
Vocative	aśvayu	aśvayunī	aśvayūni
Accusative	aśvayu	aśvayunī	aśvayūni
Instrumental	aśvayunā	aśvayubhyām	aśvayubhiḥ
Dative	aśvayune	aśvayubhyām	aśvayubhyaḥ
Ablative	aśvayunaḥ	aśvayubhyām	aśvayubhyaḥ
Genitive	aśvayunaḥ	aśvayunoḥ	aśvayūnām
Locative	aśvayuni	aśvayunoḥ	aśvayuṣu

Compound aśvayu -

Adverb -aśvayu