Source : Webster's Revised Unabridged Dictionary (1913)

Fray \Fray\, v. i.
   1. To rub.

            We can show the marks he made When 'gainst the oak
            his antlers frayed.                   --Sir W.
                                                  Scott.

   2. To wear out or into shreads, or to suffer injury by
      rubbing, as when the threads of the warp or of the woof
      wear off so that the cross threads are loose; to ravel;
      as, the cloth frays badly.

            A suit of frayed magnificience.       --tennyson.

Fray \Fray\, n.
   A fret or chafe, as in cloth; a place injured by rubbing.

Fray \Fray\ (fr[=a]), n. [Abbreviated from affray.]
   Affray; broil; contest; combat.

         Who began this bloody fray?              --Shak.

Fray \Fray\, v. t. [imp. & p. p. {Frayed} (fr[=a]d); p. pr. &
   vb. n. {Fraying}.] [See 1st {Fray}, and cf. {Affray}.]
   To frighten; to terrify; to alarm. --I. Taylor.

         What frays ye, that were wont to comfort me affrayed?
                                                  --Spenser.

Fray \Fray\, v. t. [Cf. OF. fraier. See {Defray}, v. t.]
   To bear the expense of; to defray. [Obs.]

         The charge of my most curious and costly ingredients
         frayed, I shall acknowledge myself amply satisfied.
                                                  --Massinger.

Fray \Fray\, v. t. [OF. freier, fraier, froier, to rub. L.
   fricare; cf. friare to crumble, E. friable; perh. akin to Gr.
   chri`ein to anoint, chri^sma an anointing, Skr. gh[.r]sh to
   rub, scratch. Cf. {Friction}.]
   To rub; to wear off, or wear into shreds, by rubbing; to
   fret, as cloth; as, a deer is said to fray her head.

Source : WordNet®

fray
     n : a noisy fight [syn: {affray}, {disturbance}, {ruffle}]
     v 1: wear away by rubbing; "The friction frayed the sleeve" [syn:
           {frazzle}]
     2: cause friction; "my sweater scratches" [syn: {rub}, {fret},
        {chafe}, {scratch}]