Declension table of ?upeyivas

Masculine	Singular	Dual	Plural
Nominative	upeyivān	upeyivāṃsau	upeyivāṃsaḥ
Vocative	upeyivan	upeyivāṃsau	upeyivāṃsaḥ
Accusative	upeyivāṃsam	upeyivāṃsau	upeyuṣaḥ
Instrumental	upeyuṣā	upeyivadbhyām	upeyivadbhiḥ
Dative	upeyuṣe	upeyivadbhyām	upeyivadbhyaḥ
Ablative	upeyuṣaḥ	upeyivadbhyām	upeyivadbhyaḥ
Genitive	upeyuṣaḥ	upeyuṣoḥ	upeyuṣām
Locative	upeyuṣi	upeyuṣoḥ	upeyivatsu

Compound upeyivat -

Adverb -upeyivas