Positional allography?

[oshfdk]

Yeah, I guess I should have been more clear. The way I understood your post is that apart from LAAFU stuff, Voynichese positional rigidity can be compared to English -ing. I just don't think that's true. Even omitting the admittedly more bizarre LAAFU shenanigans, Voynichese is still absurdly rigid.

(Also, the system is a black box to us so whether or not something is a suffix doesn't matter. In Voynichese, we don't see the difference between the ing in starling and that in gnarling.

Here I agree with you completely, positional rigidity/word grammar(s) in Voynichese are not compatible with most written natural languages. Maybe something like Chinese/Vietnamese rendered in Latin script without tone marks could come close. Personally, I think all these features are the result of the specific cipher being used and not related to the properties of the plaintext language.