In the film Daughters of the Dust is a scene listing vocabulary of Gullah Geechee words derived from African languages that had been collected by Lorenzo Dow Turner. Among the Africanisms, however, were deloe ‘water’ and diffy ‘fire’, which are disguised French: de l’eau and du feu. Must have gotten there from the French Caribbean somehow.
And this is not coming from proper French but from some names in the U.S. and from the apparent origin of a town name in Mississippi. There are also Americans with the name D’Lo. Lots of words have changed from their French origins, including a vast number of words in English which come from Norman French. 60% of English words come originally from some French source. Despite that, we still think of English as being in the Germanic branch of Indo-European, since the most common words are from that source.