Declension table of ?puputhvas

Masculine	Singular	Dual	Plural
Nominative	puputhvān	puputhvāṃsau	puputhvāṃsaḥ
Vocative	puputhvan	puputhvāṃsau	puputhvāṃsaḥ
Accusative	puputhvāṃsam	puputhvāṃsau	puputhuṣaḥ
Instrumental	puputhuṣā	puputhvadbhyām	puputhvadbhiḥ
Dative	puputhuṣe	puputhvadbhyām	puputhvadbhyaḥ
Ablative	puputhuṣaḥ	puputhvadbhyām	puputhvadbhyaḥ
Genitive	puputhuṣaḥ	puputhuṣoḥ	puputhuṣām
Locative	puputhuṣi	puputhuṣoḥ	puputhvatsu

Compound puputhvat -

Adverb -puputhvas