Repetition of a word or phrase with one or a few intervening words
In Shakespeare's Romeo and Juliet, Juliet famously announces the following extended diacope: "O Romeo, Romeo! Wherefore art thou Romeo?"
Diacope (/daɪˈækəpi/dy-AK-ə-pee) is a rhetorical term consisting of the repetition of a word or phrase separated up by a single intervening word or short phrase. It derives from a Greek word diakopḗ, which means "cut in two". Diacopes (or diacopae) are used for emphasis— specifically on the repeated phrase— and expressing strong emotions.
Types of diacopes
There are three types of diacopes:
Vocative diacopes involve the intervening phrase being a noun of address; for example, "Yeah, baby, yeah" from Austin Powers (baby is vocative in this context).:72
Elaborative diacopes involve an explanatory word as part of the intervening phrase to enhance the repeated phrase's meaning; for example, the line "O Captain! My Captain!" from Walt Whitman's eponymous poem.:72
Extended diacopes involve the repeated phrase being reiterated more than twice. While non-extended diacopes take on the form ABA, extended diacopes can use other variations; many of which use the AABA form as in Juliet's soliloquy in Romeo and Juliet: "O Romeo, Romeo! Wherefore art thou Romeo?":73
Rhetorical use
Diacope can be used to emphasize be placed on the repeated word. Additionally, it can create strong emotional impact and sense of urgency or insistency, especially if the repeated word is emotionally impactful. For example, The Cardigans' "Lovefool's" chorus has an extended diacope— "Love me. Love me. Say that you love me—" which strengthens the listener's emotional resonance with the speaker and emphasizes the song's chorus as an increasingly-urgent plea. This can additionally be used for persuasion.
"I'm thirsty, I'm thirsty! Oh, God, I'm thirsty! Oh I'm thirsty! Oh I'm thirsty! I'm thirsty! Oh, Oh, Oh, I'm thirsty!" — "The Crucifixion," Jesus Christ Superstar (this could be considered in the form AABABABAABA or alternatively as multiple diacopes)
"Keeps going and going and going." — Energizer slogan