arpent[är′pənt; Fr ȧr pän′]
arpent 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.
an old French unit of land measure, formerly used in parts of Quebec and Louisiana, equal to about acre
Origin: French ultimately ; from Gaulish arepenis
arpent definition by American Heritage Dictionary
Any of various French units of land measurement, especially one used in parts of Canada and the southern United States and equal to about 0.4 hectare (0.85 acre).
Origin: French, from Old French, from Latin arepennis, half acre; see per1 in Indo-European roots.