outfawn

/aʊtˈfɔn/
verb
  1. To flatter or show excessive affection more than someone else; to outdo in fawning.
    • He attempted to outfawn his rival by praising the boss's every idea.
    • In the competition for the teacher's favor, no one could outfawn the class pet.
    • The assistant tried to outfawn the manager with endless compliments.