Et tu, Brute?

Et tu, Brute? [(et tooh brooh-tay)]

A Latin sentence meaning “Even you, Brutus?” from the play Julius Caesar, by William Shakespeare. Caesar utters these words as he is being stabbed to death, having recognized his friend Brutus among the assassins.

Note “Et tu, Brute?” is used to express surprise and dismay at the treachery of a supposed friend.