From Wiktionary, the free dictionary
片 (kata, “one side or part”) + 割れ (ware, “broken piece”).
片割れ • (kataware)
- one part or fragment of something broken
- Synonyms: 断片 (danpen), 欠片 (kakera)
- one part or member of a pair, a group, or a set of something or some people
- one of the bodies resulted from the split of another one into many parts
- Synonym: 分身 (bunshin)