Declension table of ?pupruthvas

Masculine	Singular	Dual	Plural
Nominative	pupruthvān	pupruthvāṃsau	pupruthvāṃsaḥ
Vocative	pupruthvan	pupruthvāṃsau	pupruthvāṃsaḥ
Accusative	pupruthvāṃsam	pupruthvāṃsau	pupruthuṣaḥ
Instrumental	pupruthuṣā	pupruthvadbhyām	pupruthvadbhiḥ
Dative	pupruthuṣe	pupruthvadbhyām	pupruthvadbhyaḥ
Ablative	pupruthuṣaḥ	pupruthvadbhyām	pupruthvadbhyaḥ
Genitive	pupruthuṣaḥ	pupruthuṣoḥ	pupruthuṣām
Locative	pupruthuṣi	pupruthuṣoḥ	pupruthvatsu

Compound pupruthvat -

Adverb -pupruthvas