Ruby's Greek Thread

[Ruby Novacna]

And why can we read it this way?
For example,  I don’t see any similarity between k and μ.

Take a look at this book, for example.
You are not allowed to view links. Register or Login to view.
Moreover, I saw in this table the letter μ very similar to ee EVA in the word oeepoaly (oeefoaly, in reality).