But you don't know it
Greek word Όνομα (Ónoma) means name or fame. The letter a or an before a word means the lack of the word. So Ανώνυμος (ánonymos) means someone with no name or fame
I am not sure the Anonumous Group mean no fame but surely they meant lack of a name.
Explore ‘mystery’, from Greek ‘mysterion’ (secret rite), a term for the unexplained and a popular genre in fiction and storytelling.
Trace ‘acrobatics’ from Greek ‘akrobatēs’, meaning high walker, to a captivating art of agility and balance in performance
The word idiot originates from Greek word Ιδιώτης (idiotis) but in Greek has very different meaning.