from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To disturb the order or arrangement of.
- transitive v. To upset the normal condition or functioning of.
- transitive v. To disturb mentally; make insane.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. to cause someone to go insane (usually used in the passive, see deranged)
- v. to cause disorder in something, to distort it from its ideal state
- v. to disrupt somebody's plans, to inconvenience someone
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To put out of place, order, or rank; to disturb the proper arrangement or order of; to throw into disorder, confusion, or embarrassment; to disorder; to disarrange.
- transitive v. To disturb in action or function, as a part or organ, or the whole of a machine or organism.
- transitive v. To disturb in the orderly or normal action of the intellect; to render insane.
from The Century Dictionary and Cyclopedia
- To disturb the regular order of; throw into confusion; disconcert; disarrange: as, to derange plans or affairs.
- To disturb the state, action, or functions of; put out of proper order or condition; disorder; unsettle: as, to derange a machine; his health is much deranged; to derange one's mind or reason.
- To disorder the mind of; unsettle the reason of, as a person.
- To disarrange, displace, unsettle, confuse, embarrass, discompose, disconcert.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. throw into great confusion or disorder
- v. derange mentally, throw out of mental balance; make insane
French déranger, from Old French desrengier : des-, de- + reng, line (of Germanic origin; see sker-2 in Indo-European roots).(American Heritage® Dictionary of the English Language, Fourth Edition)
From French déranger, from Old French desrengier ("throw into disorder"), from des- + rengier ("to put into line"), from reng ("line, row"), from a Germanic source. See rank (noun). (Wiktionary)