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 perturbed
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Perturbed is always a great word to know.
So is flibbertigibbet. Does it mean:
a chattering or flighty, light-headed person.
a stew of meat, vegetables, potatoes, etc.
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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

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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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).

perturbed
1510s, pp. adj. from perturb.
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
Today's bloggers aren't perturbed in the least by blogging's putative dangers.
Since they didn't act perturbed, he decided to keep going.
The cloud was likely irregular in shape, perturbed by neighboring stars and
  other clouds.
It's also hard not to be perturbed by the whole affair.
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