Subduct

from The Collaborative International Dictionary of English v.0.48
Subduce \Sub*duce"\, Subduct \Sub*duct"\, v. t. [L. subducere,
   subductum; sub under + ducere to lead, to draw. See {Duke},
   and cf. {Subdue}.]
   1. To withdraw; to take away. --Milton.
      [1913 Webster]

   2. To subtract by arithmetical operation; to deduct.
      [1913 Webster]

            If, out of that infinite multitude of antecedent
            generations, we should subduce ten.   --Sir M. Hale.
      [1913 Webster]
    

[email protected]