send a painful or damaging shock through (something, especially a part of the body)

he jarred the knee in training

have an unpleasant or disturbing effect

a laugh which jarred on the ears

the difference in their background began to jar

incongruous in a striking or shocking way; clashing

the telephone struck a jarring note in those Renaissance surroundings

causing a physical shock, jolt, or vibration

the van came to a jarring halt