[v] conceal one's true motives from esp. by elaborately feigning good intentions so as to gain an end; "He bamboozled his professors into thinking that he knew the subject well"
HOODWINK is a 8 letter word that starts with H.
1. To blind by covering the eyes.
We will blind and hoodwink him.       --Shak.
2. To cover; to hide. [Obs.] --Shak.
3. To deceive by false appearance; to impose upon.
``Hoodwinked with kindness.'' --Sir P. Sidney.