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Webster 1913 Edition

Adj.

Affecting like a canker.

“Canrerous shackles.”

Thomson.

Misdeem it not a

cankerous

change.

Wordsworth.

Adj.

Corroding like a canker.

cankerous ‎(comparative more cankerous, superlative most cankerous)

1843 William Youatt, John Stuart Skinner - The Horse
A pledget of tar should be dipped in the acid, and then firmly pressed on the cankerous surface.
1861 Alfred Bate Richards - Croesus, King of Lydia
Twas cankerous envy framed his sour reply.