perm[9], peng[8], merz[8], meng[7], germ[7], zerg[7], nerz[6], gern[5],
per[6], rep[6], zen[5], erz[5], zer[5], eng[4], gen[4], erg[4], ger[4], reg[4], ern[3], ren[3],
ne[2], er[2], re[2],
