The Collaborative International Dictionary of English v.0.48:
Dissemble \Dis*sem"ble\, v. t. [imp. & p. p. Dissembled; p.
pr. & vb. n. Dissembling.] [OF. dissembler to be
dissimilar; pref. dis- (L. dis-) + F. sembler to seem, L.
simulare to simulate; cf. L. dissimulare to dissemble. See
Simulate, and cf. Dissimulate.]
1. To hide under a false semblance or seeming; to feign
(something) not to be what it really is; to put an untrue
appearance upon; to disguise; to mask.
Dissemble all your griefs and discontents. --Shak.
Perhaps it was right to dissemble your love,
But -- why did you kick me down stairs? --J. P.
2. To put on the semblance of; to make pretense of; to
simulate; to feign.
He soon dissembled a sleep. --Tatler.
Syn: To conceal; disguise; cloak; cover; equivocate. See