corrosion

The story

1. Latin · derived fromcorrōdō“gnaw away, corrode”
2. Late Latin · derived fromcorrōsiōnem
3. Old French · derived fromcorrosion
4. Middle English · inherited fromcorrosioun
5. English todaycorrosion

From Middle English corrosioun, from Old French corrosion, or its source, Late Latin corrōsiōnem, accusative singular of corrōsiō (“gnawing away, corroding”), from Latin corrōdō (“gnaw away, corrode”).