E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
means a player. (Latin, joculator.) These jugglers accompanied the minstrels and troubadours, to assist them, and added to their musical talents sleight-of-hand, antics, and feats of prowess, to amuse the company assembled. In time the music was dropped as the least attractive, and tricks became the staple of these wandering performers. (Latin, jocultor, jocus, a joke or trick.)