custom

Definitions

General English

Cars & Driving

  • adjective individually made to suit the requirements and tastes of the owner, especially as regards appearance

Electronics

  • That which is made to order. For instance, custom software, or a custom IC.
  • IC Abbreviation of custom integrated circuit. An IC which is designed for a particular function, application, or for given operating conditions. For instance, such an IC may be required for use in an unduly harsh working environment.

Law

  • noun unwritten rules which lay down how things are usually done and have been done for a long time

Travel

  • noun the use of a restaurant, hotel, bar or shop by regular customers

Origin & History of “custom”

Custom comes ultimately from Latin consuēscere, a compound verb formed from the intensive prefix com- and suēscere ‘become accustomed’. this in turn was derived from suī, the genitive singular of the reflexive pronoun suus ‘oneself’; the notion underlying its formation was therefore ‘that which is one’s own’, a semantic element echoed in Greek ethos ‘custom, usage, trait’, which was based ultimately on Indo-European *swe- ‘oneself’. From consuēscere was formed the Latin noun consuētūdō ‘being accustomed’ (source of the English legal noun consuetude ‘custom’ (14th c.)). This passed into early Old French as *costudne, which developed via *costumne to custome, the form borrowed into middle English (English costume came from the same ultimate source, but via Italian costume). The word’s original sense, ‘habitual practice’, developed various secondary associations, including ‘customary tax’ (whence customs duties) and ‘customary business patronage’ (whence customer). The derivative accustom (15th c.) was borrowed from Anglo-Norman acustumer.
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