Thanks for contributing that image,
SmallFries. I don't suppose you could edit your post above and put the image inside some
[hide] tags, as I've done below, could you? Otherwise it unnaturally stretches the thread horizontally. Thanks.
I've found the same pattern repetition in the Black Books, thanks to the image that SmallFries posted. I've used the same colour-code to mark the three common phrases. In fact, if you look closely at the image, those same three phrases are repeated throughout the image, and constitute the only text in the image.
This same repetition is the same as is found on the Diiv Word Wall. The reason for this is that the texture used for both appears to be drawn from the same source, which is this image...
The text on the Eye of Magnus, which
Avron the S'wit posted above, contains other glyphs, some that are not seen in the three common phrases, and some that are. I'd like to see the texture file for the Eye of Magnus from the main Skyrim game data, as we have seen the texture file from Dragonborn. It think it might reveal something about this language.