v. t. [ F. suostraire; L. subtus below (from sub under) + trahere to draw. See Substract. ] To subtract; to withdraw. [ Obs. ] Barrow. [ 1913 Webster ]

n. [ OF. substraction, F. soustraction. See Subtract. ] 1. Subtraction; deduction. [ Obs. ] [ 1913 Webster ]

2. (Law) See Subtraction, 3. [ 1913 Webster ]

n. 1. One who subtracts. [ 1913 Webster ]

2. A detractor; a slanderer. [ Obs. ] Shak. [ 1913 Webster ]