Any chance for nomenclator?

[Aga Tentakulus]

   

I just look at the signs and try to force them back into a system.
Various applications, whereby the symbols marked in green are definitely not a "c". At the same time, symbols marked in orange are a "c" possibility, but resemble a comma more than a "c".

If I assume the already mentioned variant "et" and "it", the combination EVA would change "ch" into an "?h". Correspondingly, from (en) into an (in). Both combinations represent a high usage form.
How high would the errors be given in % if "c" is rather a comma. How do I evaluate the spelling differences and how does this affect the variety on the text.

Since I don't use EVA or any other method, this would be useful for me.