French. a delight in being alive; keen, carefree enjoyment of living.
“It’s this sort of thing that ages a chappie, don’t you know, and makes his youthful joie-de-vivre go a bit groggy at the knees.”
P. G. Wodehouse, The Inimitable Jeeves, 1923
“I simply can’t explain my undying zest for life! There’s just something inside that fills me with joie de vivre, a je-ne-sais-quoi need to carpe-diem!”
Katie Brinkworth, “Living Life to the Fullest,” The New Yorker, May 1, 2014
Joie de vivre translates literally from French as “joy of living.” It entered English in the late 1800s.
Source: word of the day by dictionary.com