JJ Abrams will Solve this in the 9th StarWars Movie.
I have faith in the coked up screen writing of JJ Abrams, i'm sure he will include this in his movies somewhere, even if it is in another StarTrek movie
Star Wars has to use English(Basic) so we can enjoy watching the films. So there is going to be animals with English descriptions. I mean the word millennium is an English word too, not to mention there are humans in a galaxy far far away. :l
ET is also a member of the Star Wars galaxy. That's why he says home when he sees a kid dressed as Yoda. If you watch episode I you can even see a group of ET's on a platform clapping. :l