Obs. [f. CANKER sb. + FRET pa. pple. eaten away, gnawed.] a. Eaten away with canker or gangrene; b. Corroded with rust.
1297. R. Glouc., 299. Somme by come cancrefrete, & somme blynde oþer wode.
1603. H. Crosse, Vertues Commw. (1878), 56. Blades canker-fret and rustie within.