a·brade 
(ə-brād)
(ə-brād)v. a·brad·ed, a·brad·ing, a·brades
v.tr.
To wear down, rub away, or scrape by friction: water that abraded the canyon walls.
v.intr.
To become worn or scraped by abrasion: some leather abrades easily.
[Latin abrādere, to scrape off : ab-, away; see AB-1 + rādere, to scrape; see rēd- in the Appendix of Indo-European roots.]
a·brada·ble adj.