sycophancy

sycophant +‎ -cy

sycophancy (countable and uncountable, plural sycophancies)

1. The fawning behavior of a sycophant; servile flattery; fawningness.
   • 2010, Nassim Nicholas Taleb, The Black Swan: The Impact of the Highly Improbable, page 21:

     I have always been taken aback at the high number of people in whom an astonishingly high income led to additional sycophancy as they became more dependent on their clients and employers and more addicted to making even more money.

• See also Thesaurus:flattery