Kalmar "ROCROI" ba ta da ma'anar ƙamus da aka sanni sosai. Duk da haka, "Rocroi" yana nufin wani gari a arewa maso gabashin Faransa, wanda ke cikin sashen Ardennes. An san shi da muhimmancin tarihi a matsayin wurin yakin Rocroi, wanda ya faru a ranar 19 ga Mayu, 1643, lokacin yakin shekaru talatin. Yakin dai ya yi suna domin nasarar da sojojin Faransa suka samu a kan sojojin Spain kuma ana daukarsa a matsayin wani sauyi a rikicin.