c.1305, from O.Fr.
jolif "festive, merry, amorous, pretty" of uncertain origin (cf. It.
giulivo "merry, pleasant"), perhaps a Gmc. loan-word from a source akin to O.N.
jol "a winter feast" (see
yule), or from L.
gaudere "to rejoice."
Jollification "merrymaking" is from 1809; shortened form
jolly led to phrase
get (one's) jollies "have fun" (1957). A
jolly boat (1727) is probably from Dan.
jolle (17c.) or Du.
jol (1682), both related to
yawl (q.v.); or it may be from M.E.
jolywat (1495) "a ship's small boat," of unknown origin.