Frenchize
/ˈfrɛn(t)ʃʌɪz/(also Frenchise)
verb
[with object] To cause to become like the French; to translate (language) into French. Also: to adapt (something) to suit French style or custom. Occasionally without object.
Origin
Early 17th century; earliest use found in John Deacon (fl. 1585–1616). From French + -ize.