Definition of derange in English:

derange

Line breaks: de|range
Pronunciation: /dɪˈreɪn(d)ʒ
 
/

verb

[with object]
1Make (someone) insane: that business last month must have deranged him a bit
More example sentences
  • Privately, she wondered if they were watching her to see if she would have a breakdown or if she was mentally deranged or something, but she said nothing to that effect.
  • Meanwhile, police based on preliminary investigation ruled out the possibility of him being mentally deranged.
  • His unhinged language suggested that persecution mania briefly deranged him.
Synonyms
British sectionable
informal touched, crazy, cracked, mental
British informal barmy, barking, barking mad, round the twist
1.1Cause (something) to act irregularly: stress deranges the immune system
More example sentences
  • In scoliosis, the anatomy is deranged not only at each vertebral level but also between the convex and concave sides of the curve in the spine.
  • As when an individual soldier lost his balance, many flailing and falling soldiers deranged the enemy formation causing a serious decrease in the enemy's own firepower.
  • Autosomal genes often showed deranged regulatory levels, indicating they were in pathways perturbed by X chromosomal changes.
2 archaic Intrude on; disturb: I am sorry to have deranged you for so small a matter
More example sentences
  • From her gauze veiling the young woman spoke:-- "We are sorry to derange you. The guard made a mistake. Pardon!"

Origin

late 18th century: from French déranger, from Old French desrengier, literally 'move from orderly rows'.

Derivatives

derangement

noun
More example sentences
  • Another controversial issue is that of ‘cannabis psychosis’, or long-term mental derangement bought on by cannabis use.
  • She points out that only a proportion of its patients have been ordered there by a court after committing an offence through mental derangement.
  • There is no proof that they are suffering from any mental derangement.

Definition of derange in:

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