Source : Webster's Revised Unabridged Dictionary (1913)

Bicker \Bick"er\, v. i. [imp. & p. p. {Bickered}; p. pr. & vb.
   n. {Bickering}.] [OE. bikeren, perh. fr. Celtic; cf. W. bicra
   to fight, bicker, bicre conflict, skirmish; perh. akin to E.
   beak.]
   1. To skirmish; to exchange blows; to fight. [Obs.]

            Two eagles had a conflict, and bickered together.
                                                  --Holland.

   2. To contend in petulant altercation; to wrangle.

            Petty things about which men cark and bicker.
                                                  --Barrow.

   3. To move quickly and unsteadily, or with a pattering noise;
      to quiver; to be tremulous, like flame.

            They [streamlets] bickered through the sunny shade.
                                                  --Thomson.