Does anyone know Russian here?
Some Russian forum user posted a translation of what Iorveth was saying in his dream, claiming that this came from the game writers themselves.
http://forums.ag.ru/?board=ti_main&action=display&s=0&num=1305493370&start=5000 (post #5008)
Enhanced with Google Translation, here goes:
"Oh, carrots, tasty carrot
And still on top and fat,
Here, even the chicken with parsley ... "
For the sake of completion:
There is another attempt from the page before (post #4989) which reads "a woman wants to spend an evening, for this table. " (credits Russian-English Google translation).
I have checked until page 217. No other interpretation has been given.