sou

noun3

1. •
   (historical) An old French copper coin equal to one twentieth of a livre or twelve deniers; one sou is to the livre as one shilling is to the pound.

   • He is grey, flat-footed and withered, with long, brittle nails that set your nerves on edge while he scrapes up your two sous. — 1918
2. •
   (slang, old-fashioned) Cent; pocket money.
3. •
   (old-fashioned) A thing of the smallest value; a whit; a jot.

   • I do not care a sou for your excuses.