Declension table of ?regya

Neuter	Singular	Dual	Plural
Nominative	regyam	regye	regyāṇi
Vocative	regya	regye	regyāṇi
Accusative	regyam	regye	regyāṇi
Instrumental	regyeṇa	regyābhyām	regyaiḥ
Dative	regyāya	regyābhyām	regyebhyaḥ
Ablative	regyāt	regyābhyām	regyebhyaḥ
Genitive	regyasya	regyayoḥ	regyāṇām
Locative	regye	regyayoḥ	regyeṣu

Compound regya -

Adverb -regyam -regyāt