Acul-de-sac (literally "bottom of bag") is a word that came from theFrench language and means a small street without a way through at the far end. It is also used inCatalan andOccitan, its meaning being equivalent to adead end,close, orno through road (United Kingdom,Australian andCanadian English). While culs-de-sac were built inhistory for other reasons, its modern use is to calm down thetraffic.