Declension table of ?pupurvvas

Neuter	Singular	Dual	Plural
Nominative	pupurvvat	pupurvuṣī	pupurvvāṃsi
Vocative	pupurvvat	pupurvuṣī	pupurvvāṃsi
Accusative	pupurvvat	pupurvuṣī	pupurvvāṃsi
Instrumental	pupurvuṣā	pupurvvadbhyām	pupurvvadbhiḥ
Dative	pupurvuṣe	pupurvvadbhyām	pupurvvadbhyaḥ
Ablative	pupurvuṣaḥ	pupurvvadbhyām	pupurvvadbhyaḥ
Genitive	pupurvuṣaḥ	pupurvuṣoḥ	pupurvuṣām
Locative	pupurvuṣi	pupurvuṣoḥ	pupurvvatsu

Compound pupurvvat -

Adverb -pupurvvat