Wait... so does Optimus Prime from Transformers name literally translate into "The Best Number One"?
Well, I suppose I can assume that Latin and Cybertronian are two separate languages... though... it being revealed that Cybertronian and Latin seemed to coincidentally be the same language would be hilarious--as it would mean Starscream being able to go all quidquid latine dictum sit, altum videtur. It would be right up there with Klingons quoting Shakespeare.
Prime is vocative masculine (sing), and Optimus is nominative masculine (sing) so it's weird, it should be Optimus Primus, or Optime Prime, unless "prime" is supposed to be in English.
"Optimus" can also mean "excellent", without superlative.
You should learn Klingon on Duolingo.
Maecenas optimus patronus fuit. https://la.wikipedia.org/wiki/Gaius_Cilnius_Maecenas
As I understand the thing, they sometimes use the superlative as a normal adjective in Latin. Idiomatically.
Like if you say "It's greater", (but you don't say it's greater than what), just to mean "it's really great". I think the good translation is "really great", rather. (according to my comprehension).