Because I have way too much time on my hands, I've actually been going around trying to translate each WordWall. I've been planning to make to make a thread about this, as it's off topic to this one, but haven't gotten around to it.
Here's what I got for Mount Anthor:
HET NOK KOPRaaN DO IGLIF iiZ-SOS WO GRIND OK OBLaaN NI KO MOROKei VUKeiN NUZ ahST MUNAX HaaLVUT DO LiiV KRASaaR
Here lies [the] body of Iglif Ice-Blood, who met his end not in glorious combat, but at [the] cruel touch of [the] wither[ing] sickness.
I was actually struggling with the translation until I stumbled onto it in a book titled http://imperial-library.info/content/skyrim-dragon-language-myth-no-more. Convenient, right?
And the court wizard believes the war happened in the first era? That's... frustrating if it's true. The timeline wouldn't make any sense. It'd have to be late Merethic at least.