v. Obs. rare1. [a. AF. *surtraire, (cf. OF. sourtraire to seduce), used for s(o)ustraire, ad. L. substrahĕre to SUBSTRACT.] trans. To draw off, take away, subtract. So † Surtrete v.
c. 1440. Pallad. on Husb., III. 1097. A skep of palm thenne after to surtray is This wyn. Ibid., IV. 460. Heer & ther the drie awey surtrete. Ibid., X. 208. Surtrete hem first and after multiplie.