What does "fettle" mean?

Fettle: (Metal.) To cover or line with a mixture of ore, cinders, etc., as the hearth of a puddling furnace.

Additional senses

  1. 2.To make preparations; to put things in order; to do trifling business. [Prov. Eng.] Bp. Hall.
  2. 3.The act of fettling. [Prov. Eng.] Wright. In fine fettle, in good spirits.

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