I'm currently in the Illearth War. Covenant asks Mhoram what makes the Lords so weak, and Mhoram is explaining why they do "not suffice" to grasp the Lore. He remarks that they "translate the speech of the old Lords". BUT, When Linden meets Berek Heartthew in Fatal Revenant, they have no problems communicating. The "speech of the Old Lords" appears to be American English.
What's going on here?

It seems too glaring to be a mistake on SRD's part.
The Seven Wards, and the Lords' 'insufficency', remain an unanswered question. There is a lot of emphasis on it in the First Chronicles. Yes, wild magic came in and messed everything up in unlocking the krill and releasing Amok and all that, but then in the Last Chrons we get a tantalizing glimpse of the other Wards when Liand finds the orcrist, so you have to think there will be more on that.
Another possibility is that the Old Lords had a kind of "King James Version" ceremonial speech that was difficult to grasp. But the Seven Words do not come from them; the Theomach had to sit down and translate them for Linden; he presumed that their meaning was unknown.
Is the Lords' difficulty in understanding the Old Lords' writings another 'dream-like' quality? I sure hope it's a RAFO!!