Bonhomie:
Bonhomie means exuberance, friendliness, geniality. Bonhomie is a noun that describes a state of good humor, cheerfulness, or being good-natured. Synonyms of bonhomie that may be found in a thesaurus are agreeableness, pleasantness, congeniality. The term bonhomie carries a connotation of being gregarious and full of love for one’s fellow man, a feeling that all is right with the world. People enjoy being around someone who is filled with bonhomie. The term bonhomie is a loan word from the French. While bonhomie is taken directly from the French where it means easy-tempered, it is derived from the French word bonhomme. Bonhomme is a French compound word combining the word bon meaning good and homme meaning man. Homme is derived from the Latin word homo, which means man. Bonhomie entered the English language around the turn of the nineteenth century. [Grammarist]
Noted in “Joe Biden triumphs over Trump as voters repudiate divisive, bullying president,” Toluse Olorunnipa, Annie Linskey, and Philip Rucker, WaPo:
Clinching the nomination early offered advantages, affording Biden time to unite the Democratic Party. He rolled out back-to-back-to-back virtual endorsements by former rivals in which they would appear together on video, events that fostered a sense of Democratic bonhomie after a bruising primary. He worked with Sen. Bernie Sanders (I-Vt.) and his supporters to develop policies, effectively muting the criticism from the left that had hounded the 2016 nominee, Hillary Clinton.