Declension table of ?upaja

Masculine	Singular	Dual	Plural
Nominative	upajaḥ	upajau	upajāḥ
Vocative	upaja	upajau	upajāḥ
Accusative	upajam	upajau	upajān
Instrumental	upajena	upajābhyām	upajaiḥ upajebhiḥ
Dative	upajāya	upajābhyām	upajebhyaḥ
Ablative	upajāt	upajābhyām	upajebhyaḥ
Genitive	upajasya	upajayoḥ	upajānām
Locative	upaje	upajayoḥ	upajeṣu

Compound upaja -

Adverb -upajam -upajāt