A Numeric Solution

[Jorge_Stolfi]

Even the most skeptical must admit:  the EVA-y is unmistakably the number 4.  If this is a 4, could EVA-o be a 0? 

Sorry, but those are just meaningless coincidences.  If you make up an alphabet from combinations of 1-3 simple pen strokes, it is almost guaranteed that some letters will look exactly like some letters of other alphabets.  Just by chance.

Japanese hiragana "HI" looks very much like Latin "U".  The Georgian letters for the sounds "o", "q", and "w" look like Latin "m", "y", and the digit "3". And so on...

Besides, a more common reading of Voynichese y in Latin manuscript is the abbreviation for the ending "-us".  You can see it in the VMS quire numbers, as "1y" for "primus", etc,  But of course y does not mean "-us" (or "4", or "9") in Voynichese text.

All the best, --stolfi