Definition of


  1. (noun, act) accepted or habitual practice
  2. (noun, act) habitual patronage
  3. (noun, cognition) a specific practice of long standing
  4. (noun, possession) money collected under a tariff
  5. (adj, all) made according to the specifications of an individual

via WordNet, Princeton University

Origin of the word Custom

  1. c.1200, "habitual practice," from O.Fr. costume, from V.L. *consuetumen, from L. consuetudinem (nom. consuetudo) "habit or usage," from consuetus, pp. of consuescere "accustom," from com- intens. prefix + suescere "become used to, accustom oneself," related to sui, gen. of suus "oneself," from PIE *swe-more

via Online Etymology Dictionary, ©2001 Douglas Harper

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