Meaning

verb be incompatible; be or come into conflict

verb move or cause to move with a sudden jerky motion

verb shock physically

originEtymology tree English jar Proto-Indo-European *-onts Proto-Germanic *-ndz Proto-West Germanic *-andī Old English -ende Middle English -ynge English -ing English jarring From jar (“to clash, conflict, disturb”) + -ing.

Etymology from Wiktionary, CC BY-SA 3.0