corrosion
n.
c.1400, from Middle French corrosion or directly from Latin corrosionem (nominative corrosio), noun of action from past participle stem of corrodere (see corrode).
〔李〕[cor-(com-);ros;-ionn.] n.腐蚀，侵蚀；（心神的）损伤 ←rod,ros (L rodere,rosum)=to gnaw or bite 蚀，咬
〔蒋〕[rod，ros咬，啮，-ion名词后缀] 腐蚀，侵蚀