Definition of

Doubt

  1. (noun, attribute) uncertainty about the truth or factuality or existence of something
    there is no question about the validity of the enterprise
  2. (noun, cognition) the state of being unsure of something
  3. (verb, cognition) consider unlikely or have doubts about
  4. (verb, cognition) lack confidence in or have doubts about
    I suspect her true motives
    she distrusts her stepmother

via WordNet, Princeton University

Origin of the word Doubt

  1. early 13c., from O.Fr. douter, from L. dubitare "hesitate, waver in opinion" (related to dubius "uncertain"), originally "to have to choose between two things." The sense of "fear" developed in O.Fr. and was passed on to English. The -b- was restored 14c. by scribes in imitation of L. Replaced O.E. tweogan (noun twynung), from tweon<… more

via Online Etymology Dictionary, ©2001 Douglas Harper

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