Declension table of ?vṛddhātreya

Masculine	Singular	Dual	Plural
Nominative	vṛddhātreyaḥ	vṛddhātreyau	vṛddhātreyāḥ
Vocative	vṛddhātreya	vṛddhātreyau	vṛddhātreyāḥ
Accusative	vṛddhātreyam	vṛddhātreyau	vṛddhātreyān
Instrumental	vṛddhātreyeṇa	vṛddhātreyābhyām	vṛddhātreyaiḥ vṛddhātreyebhiḥ
Dative	vṛddhātreyāya	vṛddhātreyābhyām	vṛddhātreyebhyaḥ
Ablative	vṛddhātreyāt	vṛddhātreyābhyām	vṛddhātreyebhyaḥ
Genitive	vṛddhātreyasya	vṛddhātreyayoḥ	vṛddhātreyāṇām
Locative	vṛddhātreye	vṛddhātreyayoḥ	vṛddhātreyeṣu

Compound vṛddhātreya -

Adverb -vṛddhātreyam -vṛddhātreyāt