efom[9], ferm[9], form[9], morf[9], efor[8], erom[5], orem[5],
efo[7], ref[7], for[7], orf[7], mer[4], rem[4], mor[4], ero[3],
ef[6], fe[6], em[3], me[3], om[3], eo[2], er[2], re[2], or[2], ro[2],
