The blue wavy pallet (narrow vertical stripe) refers at once to the brook that gave the municipality its name and to the placename ending "—bach", which means “brook”. The cross on the dexter (armsbearer's right, viewer's left) side is the arms formerly borne by the Electorate of Trier, once the feudal overlord, while the three mitres on the sinister (armsbearer's left, viewer's right) side symbolize Saint Maternus – who headed three different bishoprics in his lifetime (Cologne, Tongeren and Trier) – thus representing the municipality's patron saint.