Word Origin & History
jog1540s, "to shake up and down," perhaps altered from M.E. shoggen "to shake, jolt, move with a jerk," of uncertain origin. Meanings "shake," "stir up by hint," and "walk or ride with a jolting pace" are from 16c. The main modern sense is attested from 1560s but mostly dates from 1948; at first a training
regimen for athletes, it became a fad c.1967.