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Last name origins & meanings:

  1. Southern French: from Occitan l’abat ‘the priest’. Compare Labbe.
  2. Southern French: topographic name for someone who lived in a valley, from Gascon dialect la bat ‘the valley’, equivalent of French Lavalle.
  3. Southern French: A bearer of the name from Bordeaux, France, was established at Trois Rivières, Quebec, by 1653.