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Last name origins & meanings:

  1. English: variant of Day 1 and 2.
  2. German: topographic name from a field name in North Rhine-Westphalia, denoting a sizeable piece of land.
  3. Welsh: from Dai or Dei, pet forms of the personal name Dafydd, Welsh form of David.
  4. Indian (Bengal and Orissa) and Bangladeshi: Hindu (Kayasth) name, probably from Sanskrit deya ‘suitable for a gift’.