Origin of easement
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
property law the right enjoyed by a landowner of making limited use of his neighbour's land, as by crossing it to reach his own property
the act of easing or something that brings ease
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
late 14c., "compensation, redress," from Old French aisement "comfort, convenience; use, enjoyment," from aisier "to ease," from aise (see ease). The meaning "legal right or privilege of using something not one's own" is from early 15c.
Online Etymology Dictionary, © 2010 Douglas Harper