rzeź[12], ferm[9], frez[8], derm[6], drze[5], rdze[5], mrze[5],
ref[7], frr[7], fez[7], dem[5], der[4], red[4], mer[4], rem[4], drr[4], zer[3],
ef[6], fe[6], de[3], em[3], me[3], er[2], re[2], ez[2], ze[2],
