Lieven asked me about this off-list, and in the interest of sharing Klingon-language trivia, I'll copy my answer here. <It was made up for the opera 'u'. The writers needed a name for Kahless' native region and didn't have one, so they made up a word that means "hero's land" ({Sub} "n. hero", {Saq} "v. land"), and put the words together in the manner of {paq'batlh} "book of honor" and so on. I don't know why they used {Saq} the verb and not {puH} the noun. Either they made a mistake or they just liked the sound or look of "Saq'sub" over "puH'sub" or whatever it would've been. Since it was used in the opera, we didn't change it. It's a proper name anyway and isn't given a meaning in-universe.> Of course, Star Trek writers may later contradict this, but as the latest Star Trek shows have Klingon-language consultants, I hope that if the writers are looking for the place of Kahless' origin, they would be informed that a name for the place already exists in Okrandian canon and use it. (It's part of Okrand's canon because he blessed it or retroactively approved it or whatever, but it's not yet in Star Trek canon because the name hasn't appeared in any show.) -- De'vID