dĕcŭrĭālis — Lewis & Short
dĕcŭrĭālis, e, adj.decuria,
I of or belonging to a decuria:
leges,Cod. Just. 11, 13, 2; hence subst., a member of a decuria (mostly post-class.):
numerus,Tert. Anim. 37:
DECVRIALIVM GERVLORVM DISPENSATOR,Inscr. Orell. 874; 976; 2252; 3216 al.; Fragm. Vat. § 142.