CANKER (2)

canker (2). Canker, v. to grow corrupt, rust, corrode, pollute

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Can″ker (kăṉ″kẽr), v. t. [imp. & p. p. Cankered (–kẽrd); p. pr. & vb. n. Cankering.] 1. 1. To affect as a canker; to eat away; to corrode; to consume.
No lapse of moons can canker Love. Tennyson. 2. 2. To infect or pollute; to corrupt. Addison.
A tithe purloined cankers the whole estate. Herbert.