easement (
http://definr.com/easement)
n 1: (law) the privilege of using something that is not your own
(as using another's land as a right of way to your own
land)
2: the act of reducing something unpleasant (as pain or
annoyance); "he asked the nurse for relief from the
constant pain" [syn:
easing,
alleviation,
relief]