Declension table of ?pūrvya

Masculine	Singular	Dual	Plural
Nominative	pūrvyaḥ	pūrvyau	pūrvyāḥ
Vocative	pūrvya	pūrvyau	pūrvyāḥ
Accusative	pūrvyam	pūrvyau	pūrvyān
Instrumental	pūrvyeṇa	pūrvyābhyām	pūrvyaiḥ pūrvyebhiḥ
Dative	pūrvyāya	pūrvyābhyām	pūrvyebhyaḥ
Ablative	pūrvyāt	pūrvyābhyām	pūrvyebhyaḥ
Genitive	pūrvyasya	pūrvyayoḥ	pūrvyāṇām
Locative	pūrvye	pūrvyayoḥ	pūrvyeṣu

Compound pūrvya -

Adverb -pūrvyam -pūrvyāt