Should note the the Veil of Wiyu is actually based on the mistranslated name of the artifact from Final Fantasy Tactics. The artifact was a book (that you could actually "read' in a choose-your-own adventure mini-game in the Japanese version of the game) named after the titular assassin with green eyes. Her name was Oeilvert, which is French for green eyes. The translators of FFT didn't known what to make of that (a French phrase translated into Japanese kana, then back to English is gonna be a mess) and the end result was Veil of Wiyu. Oeilvert also appears in FFIX as the name of a place for no apparent reason.