CarlisleEnglish From the name of a city in northern England. The city was originally called by the Romans Luguvalium meaning "stronghold of Lugus". Later the Brythonic element ker "fort" was appended to the name of the city.
JanvierFrench Either from the given name Janvier or the French word janvier meaning "January", perhaps indicating a person who was baptized in that month.
Lyon 1English, French Originally denoted a person from the city of Lyon in central France, originally Latin Lugdunum, of Gaulish origin meaning "hill fort of Lugus". It could also denote a person from the small town of Lyons-la-Forêt in Normandy.
RomillyEnglish, French Originally denoted a person who came from any of the various places in northern France called Romilly or from Romiley in England.
SidneyEnglish Originally derived from various place names in England meaning "wide island", from Old English sid "wide" and eg "island". Another theory holds that it comes from the name of a town in Normandy called "Saint Denis", though evidence for this is lacking.
TrudeauFrench (Quebec) From a diminutive of the given name Thouroude, a medieval French form of the Norse name Torvald. This name has been borne by two Canadian prime ministers, Pierre Elliott Trudeau (1919-2000) and his son Justin Trudeau (1971-).