I'll bet the French don't have a word for louvres.
Sorry, yes we have: ouïes
For people speaking french, second definition of this name:
http://www.larousse.fr/dictionnaires/francais/ou%C3%AFe/56885
Why do you have french words?
Have a look to "Middle English – from the late 11th to the late 15th century"
http://en.wikipedia.org/wiki/History_of_the_English_language "Until the 14th century, Anglo-Norman and then French was the language of the courts and government"
" Honi soit qui mal y pense" is French . In modern French "honi" is spelled "honni". I don't know if English people understand the meaning of this sentence.
But we use a lot of English words and it is increasing.