córo[9], rock[6], krok[6], kron[5], norn[4],
cór[8], koc[5], kok[5], noc[4], nok[4], kor[4], kro[4], okr[4], ork[4], rok[4], non[3], nor[3],
co[3], ko[3], ok[3], no[2], on[2], or[2], ro[2],
