The noun fugue describes a psychiatric disorder that involves memory loss and travel. If you wake up in New Jersey and can’t remember how you got there, one possibility is that you were in a fugue state.
Fugue traces back to the Latin word fuga, meaning “flight.” If you’re in a fugue state, it's like you're fleeing from your own identity. Symptoms of this rare condition include amnesia and wandering, typically in an attempt to create a new identity. Musicians might know that fugue is also the name of a musical form in which a theme is introduced and then repeated in higher or lower notes, as if the theme is flying around the scale.