"to subtract," 1540s, "now illiterate" [OED], from Modern Latin substractus, past participle of substrahere, alternative form of subtrahere (see subtraction). Related: Subtracted; subtracting.

Online Etymology Dictionary, © 2010 Douglas Harper

Examples from the Web for substract

Historical Examples of substract

  • And nothing is easier, when you have two different numbers, to substract the less from the greater.

    The Spirit Land

    Samuel B. (Samuel Bulfinch) Emmons

  • The clergyman knew someting of surgery, and he managed to substract the ball from my hip.

    By Sheer Pluck

    G. A. Henty