Lewis & Short

Sesquĭ-ŭlixes (Sescŭlixes, Plin. H. N. praef. § 24), as the designation of a thoroughly deceitful man (qs. a Ulysses and a half), name of a satire of Varro (cited very freq. by Nonius), Non. 28, 12; 31, 30; 45, 2; 48, 31 et saep.