sweet oil

sweet oil (countable and uncountable, plural sweet oils)

1. (dated) An oil with a pleasant taste, especially olive oil or rape oil. [from 16th c.]
   • 1828, JT Smith, Nollekens and His Times, Century Hutchinson, published 1986, page 293:

     Mr. Nollekens shook him by the elbow, and applied to him for a little sweet-oil, a large basin, some water, and pen, ink, and paper.

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