Declension table of ?pīvas

Neuter	Singular	Dual	Plural
Nominative	pīvat	pyuṣī	pīvāṃsi
Vocative	pīvat	pyuṣī	pīvāṃsi
Accusative	pīvat	pyuṣī	pīvāṃsi
Instrumental	pyuṣā	pīvadbhyām	pīvadbhiḥ
Dative	pyuṣe	pīvadbhyām	pīvadbhyaḥ
Ablative	pyuṣaḥ	pīvadbhyām	pīvadbhyaḥ
Genitive	pyuṣaḥ	pyuṣoḥ	pyuṣām
Locative	pyuṣi	pyuṣoḥ	pīvatsu

Compound pīvat -

Adverb -pīvat