Ernster rhymes with:
bedminster, buckminster, dunster, edminster, fenster, finster, ganster, leominster, minster, monster, muenster, munster, spinster, warminster, westminster
bedminster, buckminster, dunster, edminster, fenster, finster, ganster, leominster, minster, monster, muenster, munster, spinster, warminster, westminster