Source : Webster's Revised Unabridged Dictionary (1913)

Scruple \Scru"ple\, n. [L. scrupulus a small sharp or pointed
   stone, the twenty-fourth part of an ounce, a scruple,
   uneasiness, doubt, dim. of scrupus a rough or sharp stone,
   anxiety, uneasiness; perh. akin to Gr. ? the chippings of
   stone, ? a razor, Skr. kshura: cf. F. scrupule.]
   1. A weight of twenty grains; the third part of a dram.

   2. Hence, a very small quantity; a particle.

            I will not bate thee a scruple.       --Shak.

   3. Hesitation as to action from the difficulty of determining
      what is right or expedient; unwillingness, doubt, or
      hesitation proceeding from motives of conscience.

            He was made miserable by the conflict between his
            tastes and his scruples.              --Macaulay.

   {To make scruple}, to hesitate from conscientious motives; to
      scruple.                                    --Locke.