Mirror universe
Iaponius was a name or title adopted by the Terran emperor Philippa Georgiou, used as part of her full name in the 2250s: "Philippa Georgiou Augustus Iaponius Centarius." (DIS: "Vaulting Ambition")
Iaponius is Latin for "Japanese". According to Jordon Nardino, his intention in creating the compounded Roman Emperor-like name was that Georgiou was creating a connection between herself and Emperor Hoshi Sato – who would have adopted the name "to honor her homeland." [1]