loanword definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a word of one language taken into another and naturalized (Ex.: kindergarten < Ger, chauffeur < Fr)
Origin: influenced, influence by German lehnwort
loanword definition by American Heritage Dictionary
A word adopted from another language and completely or partially naturalized, as very and hors d'oeuvre, both from French.