Abrade \Ab*rade"\, v. t. [imp. & p. p. Abraded; p. pr. & vb. n. Abrading.]

[L. abradere, abrasum, to scrape off; ab + radere to scrape. See Rase, Raze.]

To rub or wear off; to waste or wear away by friction; as, to abrade rocks. --Lyell.

Source: Webster's Revised Unabridged Dictionary (1913)