116v

[JoJo_Jost]

English Wiktionary glosses noctifer as “the Evening Star”. I can definitely see this word in the fourth scribbling more easily than most other proposed possibilities, with the possible exception of mortifer. While this would certainly fit the theme of charms and of the apparent astrological imagery throughout the manuscript, I’m not sure that it brings us any closer to the 116v marginalia making sense, without at least a few more breakthroughs. Good thought, though.

Thx RenegadedeHealer: 
That's right, now that you mention it, it does fit litlle better. On the other hand, it's a rather rare word in Latin: there is one instance of it in Catullus 62, verse 7

videtur in summo fulgens noctifer Olympo
(The shining night‑star appears high above Olympus) 

and another source that refers to Cactullus.

One must then ask how it got into the Voynich manuscript—but who knows ?