 The Roman road which connected Lyon to Trier runs west from
the village along the Forêt Dominale des Six Cantons forest.Ruins of a villa were found near this road, what is a proof of the ancient occupation of Sillegny.Furthermore, the suffix "-y" comes from the Latin suffix "-iacum" (which comes himself from the Gaulish language "-ac") indicates a rural estate near a stream (the Seille river).