jolly: [14] Old French jolif meant ‘pleasant, merry, festive’ (it has been speculated that it may have been derived from jól, the Old Norse term for the midwinter festival, to which English yule is closely related). English took the adjective over, and whereas in French (the modern form is joli) it has come to mean ‘pretty’, in English it kept closer to the original sense ‘merry’. => yule[jolly etymology, jolly origin, 英语词源]