Thayer's Greek Lexicon

 1. to put a stumbling block or impediment in the way, upon which
another may trip and fall, metaph. to offend
  1) to entice to sin
  2) to cause a person to begin to distrust and desert one whom
he ought to trust and obey
1b1. to cause to fall away
1b2. to be offended in one, i.e. to see in another what I
disapprove of and what hinders me from acknowledging his
authority
1b3. to cause one to judge unfavourably or unjustly of another
  3) since one who stumbles or whose foot gets entangled feels annoyed
1c1. to cause one displeasure at a thing
1c2. to make indignant
1c3. to be displeased, indignant