The word "冻疮" is formed by combining the character "冻", meaning "to freeze" or "cold", which uses the ice radical "冫" for semantic meaning and "东" for phonetic indication, with the character "疮", meaning "sore" or "ulcer", which uses the sickness radical "疒" for semantic meaning and "仓" for phonetic indication; together, they semantically represent a sore caused by cold, specifically chilblains.