It measures 29 centimeters (11.41 inches) at its narrowest point.[6]
The name derives from a Greek term for a passage between two houses, with a subtext for a place for men only, such as a hiding place or a latrine. The Provencal term is defined as an "alley", a "cul-de-sac", or a "void that separates two houses", with the same subtext.[4]