jog-trots

Mistress Margaret might be eighty, so sad and sober is she; and as for my Lady and Mistress Perrote, they are just a pair of old jog-trots fit to run together in a quirle [the open car then used by ladies, something like a waggonette].

The White Lady of Hazelwood A Tale of the Fourteenth Century Emily Sarah Holt 1864

The lady's nag jog-trots a little; the nurse's voice is heard -- "Walk, walk, that's a dear! walk till you're comfortable in the saddle.

Lands of the Slave and the Free Cuba, the United States, and Canada Henry A. Murray