Discomfort, v. t. [imp. & p. p. Discomforted; p. pr. & vb. n. Discomforting.]
Etymology: [OF. desconforter, F. déconforter, to discourage; pref. des- (L dis-) + conforter. See Comfort.]
1. To discourage; to deject. His funeral shall not be in our camp, Lest it discomfort us. Shak.
2. To destroy or disturb the comfort of; to deprive oas, a smoky chimney discomforts a family.
1 other Webster entry under this spelling
Discomfort, n.
1. Discouragement. [Obs.] Shak.
2. Want of comfort; uneasiness, mental or physical; disturbance of peace; inquietude; pain; distress; sorrow. "An age of spiritual discomfort." M. Arnold. Strive against all the discomforts of thy sufferings. Bp. Hall.
Shades of meaning
Fernald lists discomfort only as an antonym, under ease.
He lists it without comment; the entries above explain its neighbors.