TBESG:ἀποσείωto shake offto shake off :—; Mid. to shake off from oneself , [Refs 6th c.BC]; of a horse, to throw his rider, [Refs 5th c.BC, 5th/4th c.BC]; metaph., ἀποσείεσθαι λύπην [5th/4th c.BC] (ML)