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noun pa·ral·o·gism \pə-ˈra-lə-ˌji-zəm\

Definition of paralogism

  1. :  a fallacious argument

Origin and Etymology of paralogism

Middle French paralogisme, from Late Latin paralogismus, from Greek paralogismos, from paralogos unreasonable, from para- + logos speech, reason — more at legend

First Known Use: 1565

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