per·turb

[per-turb]
verb (used with object)
1.
to disturb or disquiet greatly in mind; agitate.
2.
to throw into great disorder; derange.
3.
Astronomy. to cause perturbation in the orbit of (a celestial body).

Origin:
1325–75; Middle English perturben (< Old French perturber) < Latin perturbāre to throw into confusion, equivalent to per- per- + turbāre to disturb; see turbid

per·turb·a·ble, adjective
per·turb·a·bil·i·ty, noun
per·tur·ba·tious [pur-ter-bey-shuhs] , adjective
per·turb·ed·ly [per-tur-bid-lee] , adverb
per·turb·ed·ness, noun
per·turb·er, per·tur·ba·tor [pur-ter-bey-ter] , noun
per·turb·ing·ly, adverb
per·turb·ment, noun
non·per·turb·a·ble, adjective
non·per·turb·ing, adjective
un·per·turb·a·ble, adjective
un·per·turbed, adjective
un·per·turb·ing, adjective


1. trouble. 2. confuse, addle, muddle.


1. pacify.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To Perturbing
00:10
Perturbing is always a great word to know.
So is bezoar. Does it mean:
a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
Collins
World English Dictionary
perturb (pəˈtɜːb) [Click for IPA pronunciation guide]
 
vb
1.  to disturb the composure of; trouble
2.  to throw into disorder
3.  physics, astronomy to cause (a planet, electron, etc) to undergo a perturbation
 
[C14: from Old French pertourber, from Latin perturbāre to confuse, from per- (intensive) + turbāre to agitate, from turba confusion]
 
per'turbable
 
adj
 
per'turbably
 
adv
 
per'turbing
 
adj
 
per'turbingly
 
adv

perturb (pəˈtɜːb) [Click for IPA pronunciation guide]
 
vb
1.  to disturb the composure of; trouble
2.  to throw into disorder
3.  physics, astronomy to cause (a planet, electron, etc) to undergo a perturbation
 
[C14: from Old French pertourber, from Latin perturbāre to confuse, from per- (intensive) + turbāre to agitate, from turba confusion]
 
per'turbable
 
adj
 
per'turbably
 
adv
 
per'turbing
 
adj
 
per'turbingly
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History

perturb
late 14c. (implied in perturbation), probably via O.Fr. perturber (14c.), from L. perturbare "to confuse, disorder, disturb," from per- "through" + turbare "disturb, confuse," from turba "turmoil, crowd" (see turbid).
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
Example sentences
Deprive the brain of testosterone at either time and you risk perturbing the
  sublime development of maleness.
Even more perturbing is that at some point one of these games will go wrong.
The legend itself is not especially perturbing in print and still less so in
  the manner in which it is pictured.
Baseball's offseason was bizarre, eccentric and sometimes perturbing.
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