JanvierFrench Either from the given name Janvier or the French word janvier meaning "January", perhaps indicating a person who was baptized in that month.
NisiItalian Means "son of Niso", an Italian form of the mythological name Nisus.
RomillyEnglish, French Originally denoted a person who came from any of the various places in northern France called Romilly or from Romiley in England.