Neufie
Neufie is the moniker that Jacen Solo used when referring to his R9-series astromech droid. This droid was utilized within his StealthX starfighter at the peak of the Swarm War.
Behind the scenes
The word Neuf translates to nine in French. It's interesting to note that a language resembling French is present in the galaxy far, far away: Dave Filoni stated that George Lucas explicitly wanted the Twi'leks appearing in The Clone Wars to all speak using French accents.