Definition of forethink

  1. transitive verb
  2. :  to consider (something) beforehand; broadly :  to anticipate in the mind :  prognosticate

  3. intransitive verb
  4. obsolete :  to think beforehand :  plan

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Origin and Etymology of forethink

Middle English forthinken, forethinken, forthenken, forethenken, from Old English forethencan, from fore- + thencan to think — more at think

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to cast off or become cast off

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