Cul-de-sac means word for word: Bottom of a bag and means ‘Dead end street’ or “voie sans issue” in French.
The word “cul” is not polite at all but strangely gave several and correct words in French:
ReCULer: to go back
BousCULer: to bump into, to knock into
CULotte: trousers or underpants
It comes from the verb Entreprendre: to undertake or to set about
This word comes from the verb Tenir.
In French when we give or throw something to someone one, we say: Tiens or Tenez!
The imperative form was used before launching a ball and became Tennis!