Declension table of ?prathamajāta

Masculine	Singular	Dual	Plural
Nominative	prathamajātaḥ	prathamajātau	prathamajātāḥ
Vocative	prathamajāta	prathamajātau	prathamajātāḥ
Accusative	prathamajātam	prathamajātau	prathamajātān
Instrumental	prathamajātena	prathamajātābhyām	prathamajātaiḥ prathamajātebhiḥ
Dative	prathamajātāya	prathamajātābhyām	prathamajātebhyaḥ
Ablative	prathamajātāt	prathamajātābhyām	prathamajātebhyaḥ
Genitive	prathamajātasya	prathamajātayoḥ	prathamajātānām
Locative	prathamajāte	prathamajātayoḥ	prathamajāteṣu

Compound prathamajāta -

Adverb -prathamajātam -prathamajātāt