It's possible you're thinking of:
* "Bon Durant" - which is not a French word either but could be a misspelling of "Bon Jour" which means "good day" in French.
* "Bondurant" - This is an English surname of French origin, likely derived from the Occitan word "bon duraire", meaning "good dweller" or "good tenant".
Please clarify what you are looking for to get a better response.