somniloquence

Yeah, and the worst part is that it doesn't even pay much! I won't really make enough for my efforts in having to figure a way to cut the class down to three hours, let alone actual instruction time.

Stanch is what you do to stop a flow, staunch describes someone who stands strong in the face of opposition. One of the things about most dictionaries is that they're descriptivist, which means they tend to describe meanings of words as they are used -- and over time so few people have been taught this distinction that the dictionary lists them as variants. You see this with a LOT of words. Like I said, I don't expect a writer to know this, because most writers are not super in depth word knowledgeable. But I do expect copyeditors to know this kind of thing, to be familiar with both descritptivist and PREscriptivist dictionaries (the second being the type that tell you proper usage rules and are often a little bit sniffier).