corrode
v.
c.1400, from Old French corroder (14c.) or directly from Latin corrodere "to gnaw to bits, wear away," from com-, intensive prefix (see com-), + rodere "to gnaw" (see rodent). Related: Corroded; corroding.
〔李〕[cor-(com-);rod;-e] v.腐蚀，侵蚀； 起腐蚀作用 ←rod,ros (L rodere,rosum)=to gnaw or bite 蚀，咬
〔蒋〕[cor-表加强意义，rod咬→咬坏→侵蚀] 腐蚀，侵蚀