Joos

Joos is a Dutch given name that developed as a medieval Low German and Dutch contracted form of Joost, itself derived from the Latin Justus, meaning just or righteous. The name was common in the Low Countries during the late medieval and early modern periods, carried by several Flemish painters and craftsmen. It is closely related to Joost, Jodocus, Joyce, and Justin, all of which trace back to the same Latin root.