Sounds as likely as anything. I have been pretty intrigued with the development of our vocabulary. I usually dont know unless someone tells me which words are not standard french.
There are many Lafleur here in Québec, I have a friend who plays stand up bass. There is also a famous ice hockey player from here named Guy Lafleur.
I have search in my ancestry to find someone linking me to Cadian people, but Pierre Blanchette came directly from France to Canada... anyway, I am always intrigued and charmed when I find common names up here and down there...
I am from the Mamou/Ville Platte area of Louisiana. Lafleur is a very common name in that area. My dad traced the Lafleur name from Louisiana to France but I dont remember what part of France. Most people in the Mamou/Ville Platte area have little if any Acadian ancestory, which comes as a surprise to most, as it did to me.