Declension table of ?yaupya

Masculine	Singular	Dual	Plural
Nominative	yaupyaḥ	yaupyau	yaupyāḥ
Vocative	yaupya	yaupyau	yaupyāḥ
Accusative	yaupyam	yaupyau	yaupyān
Instrumental	yaupyena	yaupyābhyām	yaupyaiḥ yaupyebhiḥ
Dative	yaupyāya	yaupyābhyām	yaupyebhyaḥ
Ablative	yaupyāt	yaupyābhyām	yaupyebhyaḥ
Genitive	yaupyasya	yaupyayoḥ	yaupyānām
Locative	yaupye	yaupyayoḥ	yaupyeṣu

Compound yaupya -

Adverb -yaupyam -yaupyāt