(马)颠簸而行

[ noun ]
an easy gait of a horse; midway between a walk and a trot
<noun.act>

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

To give them by turns an invisible jog. --Swift.

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.

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.