Charming hamlet, Nantimont and its surroundings have been occupied since the first century of our era. Traces were found along the Etalle road at a place called "le trou au sable" in 1876.
But more recently, it was in Mageroy that a Gallo-Roman villa was discovered. Occupied between the 1st and the 4th century, it is still being excavated. It will be necessary to wait until 1317 to find the first mention of Nantimont in a text. The latter explains that Messire Jean du Châtelet receives various fiefs from the counts of Chiny to reward his services. In the 17th century, a document provides us with other interesting information: the hamlet has 12 households, belongs to the provostship of Etalle and to the parish of Etalle.
In 1672, Nantimont was set up as a Lordship with high, medium and low justice and a certain communal autonomy for the inhabitants who could finally elect their mayor and their aldermen. In the middle of the 18th century, the seigniory was bought by the governor, who then resold it to the abbey of Orval in 1758. At that time, Nantimont had 9 houses, 16 laborers (women and children not being counted ). In 1823, Nantimont was separated from Etalle to be attached to the parish and the community of Habay-la-Vieille. Since then, Nantimont and Habay-la-Vieille have experienced a similar fate.
Although the section often suffered from its remoteness, it is today a village breathing the tranquility of the Gaume countryside.