A persona (plural personae or personas), depending on the context, can refer to either the public image of one's personality, or the social role that one adopts, or a fictional character. The word derives from Latin, where it originally referred to a theatrical mask. On the social web, users develop virtual personas as online identities. In fan fiction and in online stories, the personas may especially reflect the authors' self-insertion.
The Latin word probably derived from the Etruscan word "phersu", with the same meaning, and that from the Greek πρόσωπον (prosōpon). Its meaning in the latter Roman period changed to indicate a "character" of a theatrical performance or court of law,[citation needed] when it became apparent that different individuals could assume the same role and that legal attributes such as rights, powers, and duties followed the role. The same individuals as actors could play different roles, each with its own legal attributes, sometimes even in the same court appearance. According to other sources, which also admit that the origin of the term is not completely clear, persona could be related to the Latin verb per-sonare, literally: sounding through, with an obvious link to the above-mentioned theatrical mask, which often incorporated a small megaphone.