The Collaborative International Dictionary of English v.0.48:

Abrade \A*brade"\, v. t.
   Same as Abraid. [Obs.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

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.
   [1913 Webster]

WordNet (r) 3.0 (2006):

abrade
    v 1: wear away [syn: abrade, corrade, abrase, rub down,
         rub off]
    2: rub hard or scrub; "scour the counter tops" [syn: scour,
       abrade]