Why this word is great
JOCUNDITY — [Noun] A state of serene and sustained cheerfulness; a quiet, agreeable pleasantness of temper. From Middle English jocundite, from Middle French jocundité, from Late Latin iōcunditās ("pleasantness, agreeableness"), from Latin iūcundus ("pleasant, agreeable") + the suffix -itās ("-ity", forming nouns of state). Unlike joviality, which implies a hearty, boisterous festivity, or mirth, which denotes the specific expression of laughter and glee, jocundity is the ambient glow of a contented spirit. It is the sun warming a walled garden bench, the companionable silence between old friends, or the light step of a walk taken for the day itself—a buoyancy so quiet it is almost a form of gratitude.