What is "montaut"

Montaut is the name or part of the name of the following communes in France:

• Montaut, Ariège, in the Ariège department
• Montaut, Dordogne, in the Dordogne department
• Montaut, Haute-Garonne, in the Haute-Garonne department
• Montaut, Gers, in the Gers department
• Montaut, Landes, in the Landes department
• Montaut, Lot-et-Garonne, in the Lot-et-Garonne department
• Montaut, Pyrénées-Atlantiques, in the Pyrénées-Atlantiques department
• Montaut-les-Créneaux, in the Gers department
• Cazeneuve-Montaut, in the Haute-Garonne department