The Collaborative International Dictionary of English v.0.48:

Jog \Jog\ (j[o^]g), v. t. [imp. & p. p. Jogged (j[o^]gd); p.
   pr. & vb. n. Jogging (j[o^]g"g[i^]ng).] [OE. joggen; cf. W.
   gogi to shake, and also E. shog, shock, v.]
   [1913 Webster]
   1. To push or shake with the elbow or hand; to jostle; esp.,
      to push or touch, in order to give notice, to excite one's
      attention, or to warn.
      [1913 Webster]

            Now leaps he upright, jogs me, and cries: Do you see
            Yonder well-favored youth?            --Donne.
      [1913 Webster]

            Sudden I jogged Ulysses, who was laid
            Fast by my side.                      --Pope.
      [1913 Webster]

   2. To suggest to; to notify; to remind; to call the attention
      of; as, to jog the memory.
      [1913 Webster]

   3. To cause to jog; to drive at a jog, as a horse. See Jog,
      v. i.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Jog \Jog\, v. i.
   1. To move by jogs or small shocks, like those of a slow
      trot; to move slowly, leisurely, or monotonously; --
      usually with on, sometimes with over.
      [1913 Webster]

            Jog on, jog on, the footpath way.     --Shak.
      [1913 Webster]

            So hung his destiny, never to rot,
            While he might still jog on and keep his trot.
                                                  --Milton.
      [1913 Webster]

            The good old ways our sires jogged safely over. --R.
                                                  Browning.
      [1913 Webster]

   2. To run at less than maximum speed; to move on foot at a
      pace between a walk and a run; to run at a moderate pace
      so as to be able to continue for some time; -- performed
      by people, mostly for exercise.
      [PJC]

The Collaborative International Dictionary of English v.0.48:

Jog \Jog\, n.
   1. A slight shake; a shake or push intended to give notice or
      awaken attention; a push; a jolt.
      [1913 Webster]

            To give them by turns an invisible jog. --Swift.
      [1913 Webster]

   2. A rub; a slight stop; an obstruction; hence, an
      irregularity in motion of from; a hitch; a break in the
      direction of a line or the surface of a plane. --Glanvill.
      [1913 Webster]

   3. A liesurely running pace. See jog[2], v. i.
      [PJC]

   Jog trot, a slow, regular, jolting gait; hence, a routine
      habit or method, persistently adhered to. --T. Hook.
      [1913 Webster]

WordNet (r) 3.0 (2006):

jog
    n 1: a sharp change in direction; "there was a jog in the road"
    2: a slow pace of running [syn: jog, trot, lope]
    3: a slight push or shake [syn: nudge, jog]
    v 1: continue talking or writing in a desultory manner; "This
         novel rambles on and jogs" [syn: ramble on, ramble,
         jog]
    2: even up the edges of a stack of paper, in printing [syn:
       square up, jog, even up]
    3: run for exercise; "jog along the canal"
    4: run at a moderately swift pace [syn: trot, jog, clip]
    5: give a slight push to
    6: stimulate to remember; "jog my memory"