Ruby's Greek Thread

[ololololo]

But the question remains: how did l turn into λ?

Could you rephrase your question, please?

Your last translation: the word xarally (or arally in your transliteration). You have defined it as παραλλάξ. You mistook two l's for two lambdas.
l is a small loop that doesn't look anything like a lambda. I haven't seen this type of lambda written in any of the manuscripts (but I might not be looking closely). What are the reasons to believe that l is a lambda?