erode
v.
1610s, "gnaw or eat away" (transitive), a back-formation from erosion, or else from French éroder, from Latin erodere "to gnaw away, consume," from assimilated form of ex- "away" (see ex-) + rodere "gnaw" (see rodent). Intransitive sense "become worn away" is by 1905. Related: Eroded; eroding. Originally of acids, ulcers, etc.; geological sense is from 1830.
〔李〕[e-(ex-);rod;-e] v.腐蚀，侵蚀； 受腐蚀 ←rod,ros (L rodere,rosum)=to gnaw or bite 蚀，咬
〔蒋〕[e-去…掉，rod咬;’咬掉”，’咬坏”] 腐蚀，侵蚀