Artificial intelligent assistant

levelage

levelage
  (ˈlɛvəlɪdʒ)
  [f. level v. + -age.]
  Levelling.

1882 Rep. to Ho. Repr. Prec. Met. U.S. 389 The Rara Avis Mining Company..give the best showing of any mine..for..development made through levelage.

Oxford English Dictionary

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