Freud's Essay on Anxiety, It's All About the Signal of Anxiousness

The unconscious is a repository of repressed signifiers. Lacan constantly wants to say that if Freud had just had access to a department of linguistics, there'd be no need for Jacques Lacan. Just as the unconscious is structured like a language, we also know that languages have their own unconscious. The word for that is etymology, lexical history, philology.