From jolt -y.
jolty (comparative joltier, superlative joltiest)
- Characterised by jolts; bumpy or jerky.
2023 April 19, Pip Dunn, “Jack of all trades... and master of most”, in RAIL, number 981, page 55:The ride was a little jolty, but then we were on jointed track and the Blaenau branch is never going to win any awards for the best track in Britain!