proper noun/mɛʁ.dɑ̃.sɔ̃/
The Merdançon (a left tributary of the Salat, Ariège department, Occitania, France); The Merdançon (a tributary of the Tave, Gard department, Occitania, France); former name of Verdanson (river of Hérault)
Borrowed from Occitan.