Declension table of ?sunna

Masculine	Singular	Dual	Plural
Nominative	sunnaḥ	sunnau	sunnāḥ
Vocative	sunna	sunnau	sunnāḥ
Accusative	sunnam	sunnau	sunnān
Instrumental	sunnena	sunnābhyām	sunnaiḥ sunnebhiḥ
Dative	sunnāya	sunnābhyām	sunnebhyaḥ
Ablative	sunnāt	sunnābhyām	sunnebhyaḥ
Genitive	sunnasya	sunnayoḥ	sunnānām
Locative	sunne	sunnayoḥ	sunneṣu

Compound sunna -

Adverb -sunnam -sunnāt