The Collaborative International Dictionary of English v.0.48:
Ease \Ease\ ([=e]z), n. [OE. ese, eise, F. aise; akin to Pr.
ais, aise, OIt. asio, It. agio; of uncertain origin; cf. L.
ansa handle, occasion, opportunity. Cf. Agio, Disease.]
1. Satisfaction; pleasure; hence, accommodation;
They him besought
Of harbor and or ease as for hire penny. --Chaucer.
2. Freedom from anything that pains or troubles; as:
(a) Relief from labor or effort; rest; quiet; relaxation;
as, ease of body.
Usefulness comes by labor, wit by ease.
Give yourself ease from the fatigue of watching.
(b) Freedom from care, solicitude, or anything that annoys
or disquiets; tranquillity; peace; comfort; security;
as, ease of mind.
Among these nations shalt thou find no ease.
Take thine ease, eat, drink, and be merry.
(c) Freedom from constraint, formality, difficulty,
embarrassment, etc.; facility; liberty; naturalness;
-- said of manner, style, etc.; as, ease of style, of
behavior, of address.
True ease in writing comes from art, not chance.
Whate'er he did was done with so much ease,
In him alone 't was natural to please. --Dryden.
At ease, free from pain, trouble, or anxiety. "His soul
shall dwell at ease." --Ps. xxv. 12.
Chapel of ease. See under Chapel.
Ill at ease, not at ease, disquieted; suffering; anxious.
To stand at ease (Mil.), to stand in a comfortable attitude
in one's place in the ranks.
With ease, easily; without much effort.
Syn: Rest; quiet; repose; comfortableness; tranquillity;
facility; easiness; readiness.
Moby Thesaurus II by Grady Ward, 1.0:
24 Moby Thesaurus words for "at ease":
abed, accepting, at home, at rest, comfortable, composed, content,
contented, easy, easygoing, eupeptic, euphoric, happy, in bed,
of good comfort, pleased, reconciled, relaxed, resigned,
sans souci, satisfied, uncomplaining, unrepining, without care