WordNet sense 1 (a freedom from financial difficulty that promotes a comfortable state):

comfort

WordNet sense 2 (the condition of being comfortable or relieved (especially after being relieved of distress)):

relief

WordNet sense 3 (freedom from constraint or embarrassment):

informality

WordNet sense 4 (freedom from difficulty or hardship or effort):

easiness, simpleness, simplicity

WordNet sense 5 (lessen the intensity of or calm):

allay, relieve, still

WordNet sense 6 (freedom from activity (work or strain or responsibility)):

relaxation, repose, rest

WordNet sense 7 (make easier):

alleviate, facilitate