lead astray in WordNet English dictionary

1. cause someone to believe an untruth
   "The insurance company deceived me when they told me they were covering my house"
   deceive  betray  lead astray 
   
2. lead someone in the wrong direction or give someone wrong directions
   "The pedestrian misdirected the out-of-town driver"
   mislead  misdirect  misguide  lead astray 
   
3. teach immoral behavior to
   "It was common practice to lead off the young ones, and teach them bad habits"
   lead off  lead astray