The Collaborative International Dictionary of English v.0.48:
Jaunt \Jaunt\, v. i. [imp. & p. p. Jaunted; p. pr. & vb. n.
Jaunting.] [Cf. Scot. jaunder to ramble, jaunt to taunt,
jeer, dial. Sw. ganta to play the buffoon, romp, jest; perh.
akin to E. jump. Cf. Jaunce.]
1. To ramble here and there; to stroll; to make an excursion.
2. To ride on a jaunting car.
Jaunting car, a kind of low-set open vehicle, used in
Ireland, in which the passengers ride sidewise, sitting
back to back. [Written also jaunty car.] --Thackeray.