E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Histrionic
is from the Etruscan word hister (a dancer), histriones (ballet-dancers). Hence, histrio in Latin means a stage-player, and our word histrionic, pertaining to the drama. History is quite another word, being the Greek historia, histor, a judge, allied to histamai, to know.