Obs. or dial. [See next, and the verb.]
† 1. Corrosion by rust. Obs.
1618. Bolton, Florus (1636), II. iii. 86. That the Armes of the Romans might not take dust, or cancker-fret. [Or is this vb.?]
2. ‘Copperas’ (? Verdigris). 3. ‘A sore or blister in the mouth. East.’ Halliwell.
