Declension table of ?suvasana

Masculine	Singular	Dual	Plural
Nominative	suvasanaḥ	suvasanau	suvasanāḥ
Vocative	suvasana	suvasanau	suvasanāḥ
Accusative	suvasanam	suvasanau	suvasanān
Instrumental	suvasanena	suvasanābhyām	suvasanaiḥ suvasanebhiḥ
Dative	suvasanāya	suvasanābhyām	suvasanebhyaḥ
Ablative	suvasanāt	suvasanābhyām	suvasanebhyaḥ
Genitive	suvasanasya	suvasanayoḥ	suvasanānām
Locative	suvasane	suvasanayoḥ	suvasaneṣu

Compound suvasana -

Adverb -suvasanam -suvasanāt