Declension table of ?regya

Masculine	Singular	Dual	Plural
Nominative	regyaḥ	regyau	regyāḥ
Vocative	regya	regyau	regyāḥ
Accusative	regyam	regyau	regyān
Instrumental	regyeṇa	regyābhyām	regyaiḥ regyebhiḥ
Dative	regyāya	regyābhyām	regyebhyaḥ
Ablative	regyāt	regyābhyām	regyebhyaḥ
Genitive	regyasya	regyayoḥ	regyāṇām
Locative	regye	regyayoḥ	regyeṣu

Compound regya -

Adverb -regyam -regyāt