istrion is incorrectly written, and should be written as "actor" being its meaning:
Greco-Latin comedies and tragedies was the actor who acted disguised. In Rome the actors used to be slaves and socially considered infamous is impeding them gain Roman citizenship. This socially negative connotation has reached our days, as he has been considered them people ill live. The word histrion ( histrionis in latin histrio: actor, comedian )?? over time it became to designate all theatrical actors. He is currently considered histrionic anyone who acts with excessive involvement in their daily lives.