Subduce

{ Sub*duce" (?), 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.

2. To subtract by arithmetical operation; to deduct.

If, out of that infinite multitude of antecedent generations, we should subduce ten.
Sir M. Hale.