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Last name origins & meanings:

  1. Lithuanian (Kairys) and Jewish (eastern Ashkenazic): nickname from Lithuanian kairys ‘left-handed’.
  2. Jewish (eastern Ashkenazic): habitational name from Kajry (Kairiai), a village in Lithuania, or a nickname for a left-handed person, ‘left’.
  3. Greek: of uncertain etymology. In Crete it is a nickname for a stingy or avaricious person.