Declension table of ?upya

Masculine	Singular	Dual	Plural
Nominative	upyaḥ	upyau	upyāḥ
Vocative	upya	upyau	upyāḥ
Accusative	upyam	upyau	upyān
Instrumental	upyena	upyābhyām	upyaiḥ upyebhiḥ
Dative	upyāya	upyābhyām	upyebhyaḥ
Ablative	upyāt	upyābhyām	upyebhyaḥ
Genitive	upyasya	upyayoḥ	upyānām
Locative	upye	upyayoḥ	upyeṣu

Compound upya -

Adverb -upyam -upyāt