Obs. Also seure-, surment. [a. AF. *surement, aphetic f. assurement ASSUREMENT. Sometimes confused with serement SERMENT, oath; cf. SOREMENT.] An assurance, pledge.
c. 1386. Chaucer, Frankl. T., 806. I yow relesse madame in to youre hond Quyt euery surement [Ellesm. (or ? sirement), Cambr., Corp., Petw., Lansd. surement, Harl. seurement, Heng. serement] That ye han maad to me.
c. 1400. Laud Troy Bk., 13022. Ther-to made he his surment To holde hem stable.
a. 140050. Wars Alex., 2748. Loke to þi-selfe, For sekire & on my surement I seke ȝow agayns.
14978. N. Riding Rec. (1894), I. 194. The which seyth upon our concience and surment that [etc.].