Voynich Welsh Numerology

[stellar]

I started with Leo, because that's my sign.
The zodiac sign Leo in Welsh is y Llew (lit, Lion). You've translated it as Cenau, which properly means cub or pup.
You seem to have done this for all the signs - you've found a Welsh word that has a vague approximation to the meaning you're trying to force upon it and that has a number value you need.

I mean, why would Pisces be "water" and not y Pysgod?

I'm not forcing anything yet I did have to correct Aquarius and Leo.  The number system verifies this and yes as you know with the Voynich everything is trial by error until you get it right.  I believe you were referring to Aquarius which is now the Water Carrier as is should be; Pisces is the Fish as Cameg.  Leo is now llewon which is plural for lion.

For some reason the Author did not use a welsh word for scorpion yet, "scorpion" is a 1, maybe its his encoding trick because the welsh word for garlic is, "craf" which shares the same glyph's as, "scorpion".