beleaguer
     v 1: annoy persistently; "The children teased the boy because of
          his stammer" [syn: {tease}, {badger}, {pester}, {bug}]
     2: surround so as to force to give up; "The Turks besieged
        Vienna" [syn: {besiege}, {surround}, {hem in}, {circumvent}]
Source: WordNet® 2.0