Sub*tract" (?), v. t. [imp. & p. p. Subtracted; p. pr. & vb. n. Subtracting.] [L. subtractus, p.p. of subtrahere to draw from beneath, withdraw, remove; sub under + trahere to draw. See Trace, v. t., and cf. Substract.]

To withdraw, or take away, as a part from the whole; to deduct; as, subtract 5 from 9, and the remainder is 4.

© Webster 1913.