[NOTE: This post was updated on Aug. 25, 2020.]
Q: What is the source of the word “kudos”? Is there such a thing as a “kudo” in the wild?
A: The word “kudo” arose as a mistake, and the majority opinion is that it’s still a mistake.
The correct word, “kudos,” is a singular noun and takes a singular verb, say most usage guides, including the new fourth edition of Pat’s book Woe Is I. “Show me one kudo and I’ll eat it,” she says.
That’s the short answer, the one to follow when your English should be at its best. But English is a living language, and the singular “kudo” and the plural “kudos” are out there kicking up their heels, never mind the word mavens.
Where did “kudo” come from? According to the Oxford English Dictionary, it’s a back formation resulting from the erroneous belief that “kudos” is plural. (A back formation is a word formed by dropping a real or imagined part from another word.)
Pronunciation may have played a part here. Originally “kudos”—like its singular Greek cousins “chaos,” “pathos,” and “bathos”—was pronounced as if the second syllable were “-oss” (rhymes with “loss”). A later pronunciation, “-oze” (rhymes with “doze”), probably influenced the perception that the word was a plural.
Now for some etymology. “Kudos” comes from the ancient Greek word κῦδος (kydos), a singular noun meaning praise or renown. And it was a relative latecomer to English.
Merriam-Webster’s Dictionary of English Usage says the Greek term “was dragged into English as British university slang in the 19th century.” The first published reference for “kudos” in the OED dates from 1831, when it meant glory or fame.
Although “kudos” was officially singular, it was often used in a general way without a direct or indirect article, which may have blurred its sense of singularity.
In a typical early citation in the OED, for instance, Charles Darwin writes in an 1859 letter that the geologist Charles Lyell read about half the manuscript of On the Origin of Species “and gives me very great kudos.”
In its earliest uses, according to Merriam-Webster’s, “kudos” referred to the prestige or glory of having done something noteworthy. But by the 1920s, it had developed a second sense, praise for an accomplishment.
And it was during the ’20s, the usage guide says, that “the ‘praise’ sense of kudos came to be understood as a plural count noun, much like awards or honors. Time magazine, according to M-W, may have helped popularize the usage.
Here’s a 1927 example from Time that suggests plurality: “They were the recipients of honorary degrees—kudos conferred because of their wealth, position, or service to humanity.”
And the usage guide also cites a 1941 citation from the magazine that’s clearly plural: “There is no other weekly newspaper which in one short year has achieved so many kudos.”
Once “kudos” was seen in Time and other publications as a plural, M-W’s usage guide says, “it was inevitable that somebody would prune the s from the end and create a singular.”
The OED’s earliest sighting of “kudo” shorn of its “s” dates from a book of slang: “Kudo, good standing with the management” (Jack Smiley’s Hash House Lingo, 1941).
Oxford also cites a 1950 letter from Fred Allen to Groucho Marx, in which Allen hyperbolically describes approval for a TV show expressed by customers at the Stage Delicatessen in New York: “A man sitting on a toilet bowl swung open the men’s room door and added his kudo to the acclaim.”
Merriam-Webster’s includes quite a few examples of the singular “kudo” and the plural use of “kudos.” Here are a couple from mainstream publications:
Saturday Review (1971): “All these kudos spread around the country.”
Women’s Wear Daily (1978): “She added a kudo for HUD’s Patricia Harris.”
OK, the singular “kudo” and the plural use of “kudos” are the result of mistakes. But a lot of legitimate words began life in error. Are “kudo” and “kudos” becoming legit as they spread like kudzu?
Merriam-Webster’s thinks so—sort of. The usage guides says the two usages “are by now well established,” though “they have not yet penetrated the highest range of scholarly writing or literature.”
Other usage commentators aren’t so open minded. In its entry for “kudos,” Fowler’s Dictionary of Modern English Usage (4th ed.) says that “in standard usage it has no plural nor is it used with the indefinite article a.”
Jeremy Butterfield, editor of Fowler’s, says “the final -s is sometimes misinterpreted as marking a plural.” But “kudo as a singular,” he writes, is not “desirable or elegant.”
“No other word of Greek origin,” Butterfield adds, “has suffered such an undignified fate.”
Lexicographers are also skeptical for the most part. Of the ten standard dictionaries we usually consul, only three (two of them published by the same company) accept the singular “kudo.”
Reflecting the majority opinion is Lexico (the former Oxford Dictionaries online), which says this in its entry for “kudos”:
“Despite appearances, it is not a plural form. This means that there is no singular form kudo and that the use of kudos as a plural … is incorrect.” Lexico provides an incorrect example (“he received many kudos”) and a corrected one (“he received much kudos”).
The three that accept the singular word “kudo” and the plural use of “kudos” are Merriam-Webster, Merriam-Webster Unabrided, and Dictionary.com (which is based on the former Random House Unabridged).
Dictionary.com, for instance, accepts word in two senses: (1) meaning “honor; glory; acclaim,” as in “No greater kudo could have been bestowed”; and (2) meaning “a statement of praise or approval; accolade; compliment,” as in “one kudo after another.”
For now, we still don’t recommend the usage.