creek[11], ecker[11], recke[11], ricke[11], erker[8], kirre[8],
ecke[10], reck[10], rick[10], kirr[7], eier[4], eire[4], irre[4],
eck[9], cer[6], kir[6], ree[3], ire[3], irr[3],
ei[2], er[2], re[2],
