The many names of Louisoux

[Catapult]

And the English version is also the only language to call Hyurs "Hyurs". The other three call them "hyuran". Lalafells, Roegadyns, Elezen don't have their race name changed, so why the change to Hyur? o_O

If you think about it, use of the term "Hyuran" naturally sounds a lot like an adjective rather than a noun and could lead to confusion if not modified. Think Bosnian, German, Garlean, Gridanian, Limsan, Indonesian and Australian as both in-game and mundane examples of the -an use for describing nationality.
While I can't speak for French or Japanese, German at least doesn't have such an instinctive complication.