cor·rade 
(kə-rād)
(kə-rād)tr. & intr.v. cor·rad·ed, cor·rad·ing, cor·rades
To erode or be eroded by abrasion.
[Latin corrādere, to scrape together : com-, com- + rādere, to scrape; see rēd- in the Appendix of Indo-European roots.]
cor·rasion (-rāzhən) n.
cor·rasive (-sĭv, -zĭv) adj.