From Final Fantasy Wiki

The orchestrated version of "FITHOS LUSEC WECOS VINOSEC"
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"Fithos Lusec Wecos Vinosec", (pronounced /fi.θos lu.sɛk vi.kos vi.no.sek/ when chanted clearly at the commencement of Liberi Fatali and /fi.θos lu.zɪk vi.kɔs vi.no.zek/ when sung more quickly later in the song), is a chanting used in several songs in Final Fantasy VIII, and is an anagram of the words "Succession of Witches" and "Love," the main themes of the game. It is perhaps best known for its appearance in the opening theme "Liberi Fatali".

"Fithos Lusec Wecos Vinosec" is played in many points throughout the game, all revolving around the Sorceress Ultimecia. One memorable moment is during Ultimecia's (as Edea) parade in Deling City. An orchestrated version was included in FITHOS LUSEC WECOS VINOSEC: Final Fantasy VIII, and a piano arrangement, called "Succession of Witches" was featured in the Piano Collections album of Final Fantasy VIII.

Other Appearances

Dissidia Final Fantasy

During a cutscene between Squall and Ultimecia in Destiny Odyssey VIII, "Fithos Lusec Wecos Vinosec" can be heard faintly in the background.