surance

But thenne were they accorded with Merlyn that kynge Arthur shold come oute and speke with the kynges / and to come sauf and to goo sauf / suche suraunce ther was made.

Modern spelling: But then were they accorded with Merlin, that King Arthur should come out and speak with the kings, and to come safe and to go safe, such surance there was made.

1470–1485 (date produced), Thomas Malory, “Capitulum 8”, in [Le Morte Darthur], book 1, [London: […] by William Caxton], published 31 July 1485, →OCLC; republished as H[einrich] Oskar Sommer, editor, Le Morte Darthur […], London: David Nutt, […], 1889, →OCLC