Source : Webster's Revised Unabridged Dictionary (1913)

Fawner \Fawn"er\, n.
   One who fawns; a sycophant.

Source : WordNet®

fawner
     n : someone who humbles himself as a sign of respect; who
         behaves as if he had no self-respect [syn: {apple
         polisher}, {bootlicker}, {groveller}, {groveler}, {truckler},
          {ass-kisser}]