The Collaborative International Dictionary of English v.0.48:

Badger \Badg"er\, v. t. [imp. & p. p. Badgered; p. pr. & vb.
   n. Badgering.] [For sense 1, see 2d Badger; for 2, see
   1st Badger.]
   1. To tease or annoy, as a badger when baited; to worry or
      irritate persistently.
      [1913 Webster]

   2. To beat down; to cheapen; to barter; to bargain.
      [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

23 Moby Thesaurus words for "badgered":
   baited, bedeviled, beset, bugged, bullyragged, chivied, deviled,
   dogged, harassed, harried, heckled, hectored, hounded, needled,
   nipped at, persecuted, pestered, picked on, plagued, ragged,
   teased, tormented, worried