I was (still am) playing Skyrim on my most recently-started playthrough, and I naturally had to retreive the horn of Jurgen Windcaller. While I was (am) in the Ustengrav Depths, I saw the word-wall at the bottom and decided to go for the new rotmulaag (it was "feim", as part of the "become ethereal" shout), and practice my Dovahzul reading skills (because I can and it's awesome). But something cought my eye: the last word on the second line. It spells out "enook", meaning "each", but what jumped out was this: the "oo" was two seperate runes instead of it's single dipthong rune.

What's going on here? Is this a mistake on Bethesda's part? Or is this acceptable? I don't know how to feel about this. I don't have any screenshots, as I play it on the xBox 360. But I looked around and it appears corrected here (link), but not here (link). I don't know if it ever was corrected on any other versions or anything. I don't see anything about this anywhere else, so I thought I'd share.

Isn't it great to be able to read the Word Walls?

I wouldn't think too hard on it. It happens on the Dragonstone too, where the "ah" in mahlaan is spelled separately as "a-h." Considering the typos that happen in the dialogue subtitles as well, I'd chalk it up to a mistake. You could even say that the Nords who wrote these weren't skilled enough with the alphabet and either didn't know or forgot to use the special runes.