England's treason act of 1351, still written in Norman French

Now this is interesting, a law still on the books with the original Norman French available to read as well.

It's both readable and unreadable. Here are the words that I either don't know or have some doubts about.

auxint p'ceo
Cõe - court, probably
leinesce
ovt
Baunk
esteiantz - being?