[YawningAngel]

I'm not sure I agree with your second footnote. Beowulf is written in Old English, which is quite hard for modern English speakers to read on account of being German. Middle English, however, I think you'd find fairly palatable. For example, the Peterborough Chronicle (https://adoneilson.com/eme/texts/peterborough_40.html) is _roughly_ contemporaneous with the Tale of Genji and is readable by modern English speakers.

[fivestones]

This looked as incomprehensible to me (a native English speaker) as a foreign language, albeit one with a bunch of scattered words I recognized…until I figured out that þ meant th and all the sudden I could mostly read it fine.