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Seeing double with "duplicate" and "reduplicate"

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Recently, English Professor Anne Curzan was giving a talk in Washington about reduplication. In reduplication, a form is repeated in a straightforward way, like "no-no" or "boo-boo," or with a vowel change like "flip-flop" or "mish-mash."

During Curzan's talk, someone in the audience raised their hand and said, "You keep using the word 'reduplication.' Isn't that redundant? Why don't you just say 'duplication'?"

Fair question.

The answer is yes, reduplication is redundant. It is exactly synonymous with "duplication." They both mean to double or do something again.

Both of these words come into English from classical Latin in the 15th century. "Reduplication," which can mean the act of doubling over or folding, also shows up in anatomy or zoology, so it's not just a linguistics term.

Today, "reduplication" is almost entirely an academic term. When Curzan looked it up in databases, she found it shows up a lot in areas like art, philosophy, linguistics, and genetics. Outside of that, "duplication" seems to be the preference.

The prefix “re” in reduplication seems to have lost its meaning of “back” or “again.” This was lost even in the Latin from which English borrowed the term. It’s possible “re” is functioning as an intensifier, but we really don’t know.

"Reduplication" got us thinking about another seemingly redundant term: "redouble." When "redouble" first comes into English around the 15th century, it really did mean to "redouble."

Around this time, we see phrases like, "We doubled, and then redoubled." In other words, we did it four times. These days though, the meaning of "redouble" has been generalized as “to increase" or “to intensify.”

Are there other words that seem redundant to you? We've talked about "irregardless," "misunderestimate," and "dethaw" before. Can you think of others?_

Copyright 2019 Michigan Radio

Rebecca Kruth is a reporter interning with Aspen Public Radio over the summer of 2013. Originally from Eaton Rapids, Michigan, Rebecca is thrilled to be spending her summer making radio in the mountains. Though she's always been a public radio fan, Rebecca explored several other career paths including teaching high school English before making her way to the airwaves. During her graduate studies at Michigan State University, Rebecca decided radio was where she needed to be and squeezed some journalism courses into her American Studies degree program. After graduation, she snagged internships on the news desk at WKAR, East Lansing and the arts and culture desk at WBEZ, Chicago. When she's not chasing stories, Rebecca enjoys cycling, photography, listening to This American Life and wandering around the country with her husband, James.
Rebecca Kruth
Rebecca Kruth is the host of Weekend Edition and a reporter at Michigan Radio. She first came to the station in 2014 as a Morning Edition intern. After earning degrees in English and American Studies from Michigan State University, Rebecca began her radio career as a newsroom intern at WKAR in East Lansing. She completed additional news internships at WBEZ Chicago and KAJX Aspen. When she’s not on the airwaves, Rebecca enjoys hiking, Korean food and wandering the country with her husband James. She's also Bruce Springsteen's number one fan.
Anne Curzan is the Geneva Smitherman Collegiate Professor of English and an Arthur F. Thurnau Professor at the University of Michigan. She also holds faculty appointments in the Department of Linguistics and the School of Education.