An archaic term for one who reasons or argues with another person; a debater or disputant.
From the archaic 'areason' combined with the agent suffix '-er,' forming 'one who areasons.' This appears primarily in Middle English and Early Modern English texts.
Medieval scholars would have called themselves 'areasoners' when they engaged in university debates—it was almost a term of intellectual honor, marking you as someone worthy of serious argument.
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