Lewis & Short

Sŭessĭōnes (Sŭessōnes, trisyl., Luc. 1, 423), um, m., a people in Gaul, in the neighborhood of the modern Soissons, Caes, B. G. 2, 3; 2, 12; 2, 13; Hirt. B. G. 8, 6; Plin. 4, 17, 31, § 106.