Origin: perhaps < Scots dialectcar-, cur-, currie- (as in carfuffle, carwhuffle to disarrange, carnaptious irritable, curriebuction a confused gathering, etc.), based on car, earlier ker left (hand or side) < Scots Gaeliccearr wrong, awkward, left-handed (compare MIr cerr crooked, maimed); variants without r probably reflect forms in r-less dialects