Since I can't find it in any Old French dictionary that is available to me, and it's driving me nuts, I decided to post here in hopes that someone would know the meaning of the word "moysne"/"moisne" and the word that looks like "aulP" (the second in the first row, then again in the second row, and more), but maybe I'm not able to decipher it.
The text is behind the lj-cut, and I don't know what it is exactly, save the fact that it seems to talk about admonishing someone for negligence of the midnight prayers.