Declension table of ?pūrvavāyu

Masculine	Singular	Dual	Plural
Nominative	pūrvavāyuḥ	pūrvavāyū	pūrvavāyavaḥ
Vocative	pūrvavāyo	pūrvavāyū	pūrvavāyavaḥ
Accusative	pūrvavāyum	pūrvavāyū	pūrvavāyūn
Instrumental	pūrvavāyuṇā	pūrvavāyubhyām	pūrvavāyubhiḥ
Dative	pūrvavāyave	pūrvavāyubhyām	pūrvavāyubhyaḥ
Ablative	pūrvavāyoḥ	pūrvavāyubhyām	pūrvavāyubhyaḥ
Genitive	pūrvavāyoḥ	pūrvavāyvoḥ	pūrvavāyūṇām
Locative	pūrvavāyau	pūrvavāyvoḥ	pūrvavāyuṣu

Compound pūrvavāyu -

Adverb -pūrvavāyu