Forum:The term "Personae"

I've seen this term thrown around here and there on this wiki, but does anyone actually have a source from any games where this it's used?

The term "personas" is used in game when more than one persona is being spoken of: if this is the case, then why do people continue to use the term "personae"?

Should articles using the term "personae" have it changed to "personas"? What does everyone think?