OE Ceastre, contr. < L Legacaestir, for L legionum castra, camp of the legions
city in Cheshire, NW England, south of Liverpool: county district pop. 116,000
See Chester in American Heritage Dictionary 4
A city of southeast Pennsylvania on the Delaware River, an industrial suburb of Philadelphia. Established as Upland, it was the site of William Penn's first landing in America (1682) and is the oldest city in the state. Population: 36,800.