disseat

dis·seat

 (dĭs-sēt′)
tr.v. dis·seat·ed, dis·seat·ing, dis·seats Archaic
To unseat.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

disseat

(dɪsˈsiːt)
vb (tr)
to remove from a seat; to unseat
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
In the fourth case, Johnson shares Edwards's resistance to Warburton's attempt to substitute "disseat" for "defeat" on the grounds that the latter word can be understood to mean simply "undo" or "change." But as Sherbo argues, Johnson did not mention this definition in his Dictionary (1755) and so must have taken it from the Canons.