Declension table of ?prottāna

Neuter	Singular	Dual	Plural
Nominative	prottānam	prottāne	prottānāni
Vocative	prottāna	prottāne	prottānāni
Accusative	prottānam	prottāne	prottānāni
Instrumental	prottānena	prottānābhyām	prottānaiḥ
Dative	prottānāya	prottānābhyām	prottānebhyaḥ
Ablative	prottānāt	prottānābhyām	prottānebhyaḥ
Genitive	prottānasya	prottānayoḥ	prottānānām
Locative	prottāne	prottānayoḥ	prottāneṣu

Compound prottāna -

Adverb -prottānam -prottānāt