Obs. [f. CANKER sb. + FRET v.] a. trans. To eat with ‘canker.’ b. intr. To become cankered; to rust.
1642. Rogers, Naaman, 36. Which else through ease and selfe-love would rust and cankerfret. Ibid., 103. Ere it [this sin] have cankerfretted the soule.
