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Cause (medicine)
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<p>Cause, also known as etiology and aetiology, is the <a href="/facts/Causality/Swh496X7">reason</a> or origination of something. </p><p>The word <i><a href="/facts/Etiology/Bz8MAeSq">etiology</a></i> is derived from the <a href="/facts/Ancient_Greek/LIK7NlUh">Greek</a> αἰτιολογία, <i>aitiologia</i>, "giving a reason for" (αἰτία, <i>aitia</i>, "cause"; and -λογία, <i>-logia</i>). </p>