To coat, treat, or anoint with oil or oily substances.
From 'en-' plus 'huile' (oil), from Old French 'huile,' from Latin 'oleum' (oil). This is a direct action verb meaning to apply oil to something.
In old recipe books and medical texts, 'enhuile' appears for preparing medicines and foods—physicians and cooks would 'enhuile' bandages and joints, and the word kept the French spelling to sound more scientific and authoritative.
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