palliation vs easement

palliation and easement both are nouns.

Word	Noun	Adjective	Verb	Adverb
palliation	Yes	No	No	No
easement	Yes	No	No	No

As nouns, easement is a hypernym of palliation; that is, easement is a word with a broader meaning than palliation:

palliation: easing the severity of a pain or a disease without removing the cause
easement: the act of reducing something unpleasant (as pain or annoyance)

Other hypernyms of palliation include alleviation, easing, relief.

palliation (noun)	easement (noun)
easing the severity of a pain or a disease without removing the cause	the act of reducing something unpleasant (as pain or annoyance)
to act in such a way as to cause an offense to seem less serious	(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)