The oddities of the bigram "ed"

[nablator]

It is easy to explain if we assume that the text is gibberish. One scribe liked to use it while other didnt. And Currier languages correspond with supposed different hands. That would be all.
Meaningful explanation is harder. Writing in another plain language would probably change more text properties, not only this

It's not "only this". There are other bigram statistics (like "lk", "ll", "lr"), and other properties that Currier noticed...