Sephirot/Fiend Connection Trivia

[Kazrah]

The spelling change in FFXIV was probably done to avoid confusion with the more popular, but not original, bearer of the name.

It was actually a bit more deliberate than that, especially when you look at the names for all three of them in historical terms, as all three bear a representation of religious ideologies that existed at around the 1st-2nd Century AD.

Sephirot represents the Kabbalah of Judaism just as Limecat stated, with many of the attacks named after the attributes of the Kabbalah.
Sophia represents Gnosticism, a religion based around knowledge and wisdom whose deity inspired the primal.
Zurvan represents a sect of Zoroastrianism, a religion with common themes of direct opposition (hence his fire and ice attacks and the line "good and evil, the war eternal").

[Kraniel]

Thanks to all of you for your answers. So i guess they just re-used the name then !

There is no connection between the two. Sephirot is the original name of Fiend, as seen in the concept art. The villain on FFVII is named Sephiroth, not Sephirot.

You're right, except that the original spelling in japanese was the same for both characters anyway (セフィロス). So they still made it confusing for no reason

Anyhow, i'm glad that i didn't miss anything lore-wise ! Although i think it could have been pretty cool if there was some kind of cross-universe connection between those two characters.