2. To calm, to satisfy.
3. To bring peace, quiet, or calm to; to soothe.
4. To satisfy or to relieve: "They tried to appease the man's thirst."
5. To pacify or to attempt to pacify (an enemy) by granting concessions, often at the expense of principles.
6. Etymology: from Old French apeserm "to pacify", from the phrase a paisier, "bring to peace"; from a-, "to" + pais, from Latin pacem, pax, "peace".
"Appeasement" was first recorded in 1919 in the international political sense; and it was not pejorative until the failure of Arthur Neville Chamberlain's policy toward Germany in 1939. "Methods of appeasement" was British Prime Minister Chamberlain's description of his policy.
We can speak of hunger being appeased by food. Appeasing usually involves giving something; whereas, pacifying tends to refer to anything from stroking a baby to using armed forces to stop an uprising.