The Collaborative International Dictionary
Sursanure
Sursanure \Sur"sa*nure\, n. [(Assumed) OF. sursane["u]re. See Sur-, and Sane.] A wound healed or healing outwardly only. [Obs.]
Of a sursanure
In surgery is perilous the cure.
--Chaucer.
Wiktionary
sursanure
n. (context obsolete English) A scab, or wound which has superficially healed over.