What is 'eau savante du sud' when translated from French to English?

"Wise water from (of) the south" is a literal English equivalent of the French phrase eau savante du sud. The pronunciation of the Words -- which most famously reference one of fragrance lines released by the fashion house founded by Christian Dior (January 21, 1905 - October 23, 1957) -- will be "o sa-vawnt dyoo syood" in French.