I have heard it said that Finnegans Wake is a great work, and my impression is that every sentence has one or two words being a pun of an English word and at least one valid word of another language. What are the chief languages which those foreign words are mostly in? I know there are commentary books, but maybe it is best to know a little bit of those languages.
For example, if foreign words are mostly in German and French, then I may first need to have a basic understanding of both languages before I read Finnegans Wake, or at least know I am better suited to read it if I know both languages. It sounds too demanding to study the whole book, but likely I will examine an excerpt of it just to have a taste of it.