Jocund: Merry and cheerful; jovial; having a cheerful disposition
Example: Her jocund personality cheered everyone around her.
Jocund comes from the Latin word jucundus, meaning pleasant, agreeable, or delightful. Jucundus is related to the Latin word for joke, iocus.
Here’s a joke. How many government employees does it take to screw in a light bulb? Two. One holds a press conference while the other one screws the light bulb into the sink faucet.
Jucundus is also the source of French jocund, Spanish jocunde, and Italian giocondo.
Synonyms include: jolly, lighthearted, and elated