previous Basque theories of the Voynich ms?

[MarcoP]

Marco, thank you for this analysis.

Your source for Linguae Vasconum Primitiae appears to be written in a more modern Basque spelling, not the author's original spelling in 1545. A short sample of the original with a comparison to modern spelling is presented You are not allowed to view links. Register or Login to view.. I am not saying the original spelling will drive down the conditional entropy from 3 to 2, but it is worth noting the actual spelling of the original text.

Thank you, Geoffrey.
The Wikipedia passages are too short to compute meaningful measures: for what is worth, the original text apparently has a slightly higher conditional entropy than the more modern spelling.
Anyway, these are details and do not make a substantial difference. Basque is and was written with a totally ordinary writing system producing a totally ordinary conditional character entropy close to 3.