Theatre: totally immersing oneself in a character - what is the word for that?

Question:I think the word is German in origin and fairly short.

Best Answer - Chosen by Asker: I think the word is German in origin and fairly short.

You may be thinking of "echt", which is German for true or real or unfeigned.

It's called the Stanislavski method and it's Russian. The players would eat sleep and breath their characters for the 1 year run of their play.