[es.cutch.eon] n [ME escochon, fr. MF escuchon, fr. (assumed) VL scution-, scutio, fr. L scutum shield--more at esquire] (15c) 1: a defined area on which armorial bearings are displayed and which usu. consists of a shield
2: a protective or ornamental plate or flange (as around a keyhole)
3: the part of a ship's stern on which the name is displayed