Declension table of ?dātreya

Masculine	Singular	Dual	Plural
Nominative	dātreyaḥ	dātreyau	dātreyāḥ
Vocative	dātreya	dātreyau	dātreyāḥ
Accusative	dātreyam	dātreyau	dātreyān
Instrumental	dātreyeṇa	dātreyābhyām	dātreyaiḥ dātreyebhiḥ
Dative	dātreyāya	dātreyābhyām	dātreyebhyaḥ
Ablative	dātreyāt	dātreyābhyām	dātreyebhyaḥ
Genitive	dātreyasya	dātreyayoḥ	dātreyāṇām
Locative	dātreye	dātreyayoḥ	dātreyeṣu

Compound dātreya -

Adverb -dātreyam -dātreyāt