Declension table of ?upanunna

Neuter	Singular	Dual	Plural
Nominative	upanunnam	upanunne	upanunnāni
Vocative	upanunna	upanunne	upanunnāni
Accusative	upanunnam	upanunne	upanunnāni
Instrumental	upanunnena	upanunnābhyām	upanunnaiḥ
Dative	upanunnāya	upanunnābhyām	upanunnebhyaḥ
Ablative	upanunnāt	upanunnābhyām	upanunnebhyaḥ
Genitive	upanunnasya	upanunnayoḥ	upanunnānām
Locative	upanunne	upanunnayoḥ	upanunneṣu

Compound upanunna -

Adverb -upanunnam -upanunnāt