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Last name origins & meanings:

  1. Muslim: from a personal name based on Arabic hayy ‘alive’. Al-Hayy, ‘the Living’, is one of the attributes of Allah.
  2. Chinese: from the name of Hai Qun, a senior minister of the state of Wei during the Spring and Autumn period (722–481 bc). The character for this name also means ‘ocean’.
  3. Vietnamese: unexplained.
  4. Jewish (Israeli): ornamental name from Hebrew chai ‘alive’, ‘vivid’.