douceur

/D UW0 S ER0/
noun
  1. 1

    Sweetness of manner: agreeableness, gentleness.

  2. 2

    Sweet speech: a compliment.

  3. 3

    A sweetener: a gift offered to sweeten another's attitude, a tip or bribe.

  4. 4

    A tax break provided as an inducement to sell valuable items (especially art) to public collections rather than on the open market.

Synonyms

Source: https://en.wiktionary.org/wiki/douceur