Definition of "dissemble"

Dissemble all your griefs and discontents.

c. 1588–1593 (date written), William Shakespeare, “The Lamentable Tragedy of Titus Andronicus”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act I, scene i], page 35

Dearly beloved brethren, the Scripture moveth us in ſundry places to acknowledge, and confeſs our manifold ſins and wickedneſs, and that we ſhould not diſſemble nor cloak them before the face of Almighty God our heavenly Father, […]

1662, Thomas Cranmer [et al.], compilers, “The Order for Morning and Evening Prayer Daily to be Said and Used throughout the Year”, in The Book of Common-Prayer, and Administration of the Sacraments, […], London: […] John Bill, and Christopher Barker, […], column 2

Perhaps it was right to dissemble your love.

1788, John Philip Kemble, The Panel

And like a lion, slumb'ring in the way, / Or sleep-dissembling, while he waits his prey.

1681, [John Dryden], Absalom and Achitophel. A Poem. […], 3rd edition, London: […] J[acob] T[onson] and are to be sold by W. Davis […], published 1682

He soon dissembled a sleep.

1710 May 27 (Gregorian calendar), Isaac Bickerstaff [et al., pseudonyms; Richard Steele et al.], “Tuesday, May 16, 1710”, in The Tatler, number 172; republished in [Richard Steele], editor, The Tatler, […], London stereotype edition, volume III, London: I. Walker and Co.; […], 1822

VVhile to his Arms the bluſhing Bride he took; / To ſeeming Sadneſs ſhe compoſ'd her Look; / As if by Force ſubjected to his VVill, / Tho' pleaſ'd, diſſembling, and a VVoman ſtill.

1700, [John] Dryden, “Cymon and Iphigenia, from Boccace”, in Fables Ancient and Modern; […], London: […] Jacob Tonson, […], page 552

[…] She transferr'd the curs'd Advice, / That Monarchs ſhould their inward Soul diſguise, / Diſſemble, and command; be falſe, and wiſe; / By ignominous Arts for ſervile Ends / Should compliment their Foes, and ſhun their Friends.

1718, Mat[thew] Prior, “Solomon on the Vanity of the World. A Poem in Three Books.”, in Poems on Several Occasions, London: […] Jacob Tonson […], and John Barber […], book II (Pleasure), page 457