if that actually works, than someone should just give Nico some kind of universal dictionary. If the wand works for spanish or whatever else she used, it could work for Shiar, Kree and any one of the thousand of other alien languages in the Marvel Universe.

And she does know a few aliens and now a few earthlings with history of being in space.

And as for your comment on her using "Unmade", my guess is that Nico just didn't know the word in any foreign languages at the moment.