Cipher or unknown language - historical perspective

[oshfdk]

But I would argue that, for the Latin scribe of the early 15th century, the Voynichese script would not have looked all that foreign, apart from perhaps the gallows. Rather a bizarre use of known, mostly non-alphabetic characters. This familiarity seems to have diminished enough by the Prague era to make them contact Kircher about it.

To me 

Ég hef ekki hugmynd um hvað þessi setning þýðir.

looks very foreign, even though most character shapes are familiar. I have no idea how to read any of it and I would struggle to guess the language.