Declension table of ?stauna

Neuter	Singular	Dual	Plural
Nominative	staunam	staune	staunāni
Vocative	stauna	staune	staunāni
Accusative	staunam	staune	staunāni
Instrumental	staunena	staunābhyām	staunaiḥ
Dative	staunāya	staunābhyām	staunebhyaḥ
Ablative	staunāt	staunābhyām	staunebhyaḥ
Genitive	staunasya	staunayoḥ	staunānām
Locative	staune	staunayoḥ	stauneṣu

Compound stauna -

Adverb -staunam -staunāt