What is the french word for name ar nessa?

There's no direct French translation for "Ar Nessa" as it's not a standard French name.

However, we can look at the potential meanings of "Ar Nessa" and find equivalent French names:

* If "Ar" is meant to be a prefix like "Arthur" or "Arnold", then you could consider French names starting with "Ar-", such as:

* Arlette: A feminine name meaning "little noble"

* Arnaud: A masculine name of Germanic origin, meaning "powerful eagle"

* Armand: A masculine name of Germanic origin, meaning "man of the army"

* If "Nessa" is the main part of the name, then you could look at French names that are similar in sound or meaning:

* Ness: A feminine name of Scottish origin, meaning "island"

* Nessa: A Welsh name meaning "goddess of the water"

* Anne: A French name meaning "grace"

* Agnès: A French name meaning "pure"

Ultimately, the best French equivalent for "Ar Nessa" would depend on the specific meaning and pronunciation you want to convey.