In Dan Brown’s 1998 thriller Digital Fortress, master cryptographer Susan Fletcher cannot decipher a single phrase: ‘without wax,’ the sign-off her boyfriend David Becker, a language professor, keeps using in his letters and refusing to explain. The novel’s narration eventually lets the reader in on the joke, tracing the phrase back to Renaissance sculptors who hid cracked marble with wax, so a flawless statue was sold as ‘sculpture sin cera’ — ‘without wax’ — supposedly the origin of the English word sincere. It’s a clever device: the world’s best codebreaker, stumped by etymology. It is also, according to the Oxford English Dictionary, flatly untrue.
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The strange part is that Brown didn’t make this up. He just picked up a story that was already more than 300 years old by the time he used it, dusted it off, and changed the props. The real history of the ‘without wax’ myth is a chain of recycled explanations stretching back to a 17th-century dictionary — and it involves honey, wax letter-seals, and warped furniture long before it ever involved a chisel.
Quick answer
No — ‘sincere’ does not come from Latin sine cera (‘without wax’). That explanation is a popular folk etymology that the OED calls untenable; sincere actually derives from the Latin sincerus, meaning ‘whole, clean, pure, genuine,’ whose own deeper roots are still debated by linguists.
Honey without wax
The oldest documented version of this myth has nothing to do with statues. A religious dictionary from 1661 defines the word this way: ‘Sincere is that which is without mixture, as hony without wax’ — the idea being that pure honey, strained clean of beeswax and comb debris, was the model of ‘sincerity.’ More than a century later, the Baptist theologian John Gill repeated the same claim in his 1796 Complete Body of Doctrinal and Practical Divinity, writing that Latin sincerus is ‘composed of sine & cera; and signifies without wax; as pure honey, which is not mixed with any wax.’
From there the story kept mutating to fit whatever wax-related craft a given era found vivid. One 19th-century writer tied it to letters sealed with wax and string; an early-20th-century version claimed dishonest cabinetmakers used wax to hide knots and cracks in wood. Somewhere along the way, a version involving marble merchants and sculptors rubbing wax into cracked stone to pass it off as flawless took hold — and that’s the version that was waiting for Dan Brown.
The myth that wouldn’t die
In Digital Fortress, Becker’s cryptic sign-off becomes a running tease: Susan, who can crack any code the NSA throws at her, can’t crack this one. When the explanation finally surfaces in the story, it’s the Renaissance marble version — flaws patched with cera (‘wax’), an unblemished statue praised as ‘sculpture sin cera.’ It’s a vivid detail, withheld from a character who refuses to translate it, which only made readers more curious. The novel sold millions of copies, and the ‘without wax’ explanation spread faster through its pages than it ever had through three centuries of dictionaries and sermons.
But the Oxford English Dictionary addresses the sine cera theory directly and dismisses it: there is, in the OED’s words, ‘no probability’ in it. The Merriam-Webster editorial staff has made the same point: the sine cera theory ‘is a popular one; unfortunately, there is no evidence to support it.’ No ancient Roman or Renaissance source ever actually defines sincerus this way — the explanation only starts showing up in English texts from the 1600s onward, long after the Latin word itself was already in wide use with its plain meaning of ‘pure’ or ‘whole.’
The part most people miss
Here’s the twist: the real etymology of sincerus isn’t fully settled either, and both leading scholarly theories land surprisingly close to the myth’s emotional core, just without the wax. One theory, favored by linguist Calvert Watkins and reflected in the American Heritage Dictionary, holds that sincerus comes from sin- (‘one,’ from the same root as English ‘single’) plus an element related to Latin crescere (‘to grow’) — making sincere literally ‘of one growth,’ i.e., not hybrid or adulterated. A separate proposal from linguist Michiel de Vaan traces it to a lost Latin adjective meaning simply ‘whole’ or ‘intact.’ Either way, actual etymologists agree sincere has always been about wholeness and purity — the wax story just invented a more picturesque way to get there. It’s a reminder that folk etymologies often survive precisely because they feel true, dressed in whatever craft or commodity — honey, wax seals, marble — was culturally handy to the person retelling it.
Sources
The Oxford English Dictionary’s entry for ‘sincere,’ which explicitly rejects the sine cera explanation as having no probability.
Grammarphobia, the language blog by former New York Times editor Patricia T. O’Conner and Stewart Kellerman, which traces the myth’s documented history back to a 1661 dictionary and John Gill’s 1796 Complete Body of Doctrinal and Practical Divinity.
The Alt-Usage-English FAQ, compiled by Mark Israel, which cites the Merriam-Webster Editorial Department’s statement that the sine cera theory ‘has no evidence to support it,’ and lays out the sin- plus crescere alternative.
Explore more: More word and phrase origin stories.
Frequently Asked Questions
Does ‘sincere’ really come from Latin ‘sine cera,’ meaning ‘without wax’?
No. The Oxford English Dictionary and Merriam-Webster both reject this as a folk etymology with no supporting evidence. Sincere comes from Latin sincerus, meaning ‘whole, pure, genuine.’
Who started the ‘without wax’ myth, and did Dan Brown invent it?
Dan Brown popularized it in his 1998 novel Digital Fortress, but he didn’t invent it. The earliest documented version appears in a 1661 English dictionary, which applied the ‘without wax’ idea to honey, not marble — the sculpture version came later.
What does ‘sincere’ actually mean etymologically?
It comes from Latin sincerus (‘whole, clean, pure, genuine’). Linguists debate the deeper root: one theory traces it to sin- (‘one’) plus a form related to crescere (‘to grow’), meaning ‘of one growth’; another traces it to a lost Latin word for ‘whole’ or ‘intact.’
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