Declension table of ātreya

Masculine	Singular	Dual	Plural
Nominative	ātreyaḥ	ātreyau	ātreyāḥ
Vocative	ātreya	ātreyau	ātreyāḥ
Accusative	ātreyam	ātreyau	ātreyān
Instrumental	ātreyeṇa	ātreyābhyām	ātreyaiḥ ātreyebhiḥ
Dative	ātreyāya	ātreyābhyām	ātreyebhyaḥ
Ablative	ātreyāt	ātreyābhyām	ātreyebhyaḥ
Genitive	ātreyasya	ātreyayoḥ	ātreyāṇām
Locative	ātreye	ātreyayoḥ	ātreyeṣu

Compound ātreya -

Adverb -ātreyam -ātreyāt