I think you got the spelling. As i understand it, one theory is that the smaller french knife is in part based off of the older navaja (spanish) pattern, scaled down in size to be a bit more pocket able (as opposed to sash/belt carry) and a bit more "civilien" then the larger weapon/tool navaja.
I'm on a mini-quest for a navaja that is more the size of the laguiole, but a bit more spanish (I like the clip "bowie" type blade quite a bit). No luck so far in the states (at least not for anything of quality).
Maybe I'll just go french and pretend =)