Subtract
Pronunciation : Sub*tract"
Part of Speech : v.
Etymology : [L. subtractus, p.p. of subtrahere to draw from beneath, withdraw, remove; sub under + trahere to draw. See Trace, v. t., and cf. Substract.]
Definition : Defn: To withdraw, or take away, as a part from the whole; to deduct; as, subtract 5 from 9, and the remainder is 4.
t. [imp. & p. p. Subtracted; p. pr. & vb. n. Subtracting.]
Source : Webster's Unabridged Dictionary, 1913