About the generation of similar words

[Rafal]

The problem with "bursts" detection by edit distance ≤ 2 is that it adds a lot of false positives to the group

That is a valid point. On the other hand Voynich doesn't have so many 2 letter words, right?

I would expect that the observed effect will survive even if we totally eliminate 2 letter words or even 3 letter words from the analysis.

@Quimqu, maybe you could perform such analysis?