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1. Dictionary

   perturb

   /pəˈtəːb/

   verb

   • 1. make (someone) anxious or unsettled: "they were perturbed by her capricious behaviour"
   • 2. subject (a system, moving object, or process) to an influence tending to alter its normal or regular state or path: technical "nuclear weapons could be used to perturb the orbit of an asteroid"

   Word Origin late Middle English: from Old French pertourber, from Latin perturbare, from per- ‘completely’ + turbare ‘disturb’.

   Derivatives

   • 1. perturbable adjective

   Scrabble Points: 11

   • P

     3

   • E

     1

   • R

     1

   • T

     1

   • U

     1

   • R

     1

   • B

     3

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