This is amazing. I didn't know this system at all. a-priori's comment is probably in the right then! (And "descenseur" seems to be an actual French word accord

This is amazing. I didn't know this system at all. a-priori's comment is probably in the right then! (And "descenseur" seems to be an actual French word according to http://fr.wiktionary.org/wiki/descenseur http://fr.wiktionary.org/wiki/descenseur, so much for showing off and knowing my native tongue.)