Merriam-Webster Collegiate Dictionary - surgery

 noun  (plural -geries)  Etymology: Middle English surgerie, from Anglo-French cirurgerie, surgerie, from Latin chirurgia, from Greek cheirourgia, from cheirourgos surgeon, from cheirourgos doing by hand, from cheir hand + ergon work — more at chir-, work  Date: 14th century  1. a branch of medicine concerned with diseases and conditions requiring or amenable to operative or manual procedures  2. alterations made as if by ~ literary ~  3.  a. British a physician's or dentist's office  b. a room or area where ~ is performed  4.  a. the work done by a surgeon  b. operation