- An example of to derange is to change the pattern of a child’s day.
- An example of to derange is to drive someone crazy.
To derange is defined as to unsettle something or to make insane.
transitive verb-·ranged′, -·rang′ing
- to upset the arrangement, order, or operation of; unsettle; disorder
- to make insane
Origin of derangeFrench déranger from Old French desrengier from des- (L dis-), apart + rengier: see range
transitive verbde·ranged, de·rang·ing, de·rang·es
- To disturb the order, arrangement, or functioning of: an asteroid impact large enough to derange the climate.
- To upset (normal condition or functioning, as of a bodily organ).
- To cause to be psychotic or otherwise severely mentally unsound.
Origin of derangeFrench déranger from Old French desrengier des- de- reng line ( of Germanic origin ; see sker-2 in Indo-European roots.)
(third-person singular simple present deranges, present participle deranging, simple past and past participle deranged)
OriginSee also: dérange