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Last name origins & meanings:

  1. German: possibly a habitational name from places in eastern Germany named Baitz or Beitzsch.
  2. South German: from Middle High German beiz ‘tanning liquid’, ‘lye’, or ‘falcon hunt’, hence an metonymic occupational name for a tanner or someone who hunted with falcons, or in some cases perhaps a derogatory nickname.
  3. variant of Beitler 2.