Dominionese is a language spoken by the Vorta, and presumably also the Founders (while in humanoid form) and the Jem'Hadar.

The following is an example of Dominionese, from the Federation-Dominion negotiations held aboard Deep Space 9 in 2374:

"Eee-ja maa'na hoo'va, baa'li jen'ku'rada sen'to." - Listen^file info

Translates to "On the balance, we give up more than you."

Here, Weyoun uses a passive voice transitive, which indicates that he is making a request, not a statement as the phrase appears in English. In this case, the universal translator failed to pick up this particular nuance. (DS9: "Statistical Probabilities")