Declension table of ?sevana

Masculine	Singular	Dual	Plural
Nominative	sevanaḥ	sevanau	sevanāḥ
Vocative	sevana	sevanau	sevanāḥ
Accusative	sevanam	sevanau	sevanān
Instrumental	sevanena	sevanābhyām	sevanaiḥ sevanebhiḥ
Dative	sevanāya	sevanābhyām	sevanebhyaḥ
Ablative	sevanāt	sevanābhyām	sevanebhyaḥ
Genitive	sevanasya	sevanayoḥ	sevanānām
Locative	sevane	sevanayoḥ	sevaneṣu

Compound sevana -

Adverb -sevanam -sevanāt