Merriam-Webster's Word of the Day

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  1. 11 hr ago

    illustrious

    Merriam-Webster's Word of the Day for August 30, 2026 is: illustrious • \ih-LUSS-tree-us\  • adjective Illustrious describes a person or deed that is highly admired and respected. // During the ceremony, the illustrious star of stage and screen was presented with a lifetime achievement award. See the entry > Examples: “Two of the most respected professors—an academic power couple—invited me to their home for dinner. I was flattered and excited. When we sat down at the table, my heart sank. The first dish they served was steak tartare. Raw beef, no matter how well seasoned, no matter how swanky the cut, is not my jam. ... And in the home of these illustrious professors, I was ashamed about that. I feared they would consider me unsophisticated for not liking the dish.” — Leslie John, Revealing: The Underrated Power of Oversharing, 2026 Did you know? Today’s spotlight is on illustrious, from the Latin adjective illustris, meaning “shining brightly with light.” Illustris itself was probably a back-formation of the Latin verb illustrare, a word with varied meanings, among them “to light up,” “to make clear,” and “to embellish.” (Our word illustrate also comes from illustrare, of course; its original meaning was “to enlighten intellectually, culturally, or spiritually.”) At one time, illustrious could be used synonymously with its immediate Latin forbear to describe things that glow brightly, but that meaning is now considered archaic. The word today is almost exclusively used to describe something—such as a career or achievement—that stands out figuratively, shining brilliantly in the mind’s eye.

  2. 1 day ago

    kith

    Merriam-Webster's Word of the Day for August 29, 2026 is: kith • \KITH\  • noun Kith is an old-fashioned term that refers to familiar friends, neighbors, or relatives. It is often used in the phrase “kith and kin,” which means “friends and relatives.” // Spending time with kith and kin at the end of the summer is the highlight of our year. See the entry > Examples: “One thing that you could usually count on was the loyalty of your kith and kin, your friends and family. But now it seems that the closeness of family and relatives is more difficult to maintain in the modern world.” — James Morabito, The Buffalo (New York) News, 26 July 2026 Did you know? If you’d used the word kith a thousand years ago, you might have been referring to knowledge, or to a homeland, or to your neighbors and acquaintances. While those first two meanings of kith have long since fallen out of use, the word endures with a meaning very close to that “neighbors and acquaintances” one. Today kith appears almost exclusively in the phrase kith and kin, meaning “friends and relatives.” (Kin, another ancient word, can also refer independently to relatives.) Occasionally you will see kith and kin used to refer only to family members, much to the chagrin of those who despise redundancy in language. If you wish to avoid redundancy charges you’ll be sure to include friends as well as family among your “kith and kin.”

  3. 2 days ago

    cogent

    Merriam-Webster's Word of the Day for August 28, 2026 is: cogent • \KOH-junt\  • adjective Cogent is a formal word that describes something that is very clear and easy for the mind to accept and believe. It is used as a synonym of convincing. // At the town meeting, citizens presented many cogent arguments in support of building a new senior center. See the entry > Examples: “The history of art reads here as one long, free verse poem-in-progress, gorgeous and absorbing. Even so, many of the most memorable moments come in the form of cogent micro-essays, smartly curated ensembles of work bearing a legible, lucid premise.” — Leah Ollman, The Los Angeles Times, 24 Apr. 2026 Did you know? A cogent argument is one that really drives its point home because it is clear, coherent, and readily understandable, and perhaps also because of the etymological history of cogent. Cogent comes from the Latin verb cōgere, meaning “to drive or force together.” Something described as cogent fuses thoughts and ideas into a meaningful whole that others can readily grasp and accept. A cogent explanation is a convincing one, and cogent analysis has us nodding along because it is clear and pertinent. Cōgere was formed in Latin by combining the prefix co- with the verb agere, “to drive, lead, or act,” a root which is also the source of our familiar noun agent. Handily enough, one definition of agent is “a means or instrument by which a guiding intelligence achieves a result.” It follows logically then that cogency is often a worthwhile agent, indeed.

  4. 3 days ago

    southpaw

    Merriam-Webster's Word of the Day for August 27, 2026 is: southpaw • \SOUTH-paw\  • noun Southpaw is an informal word for someone who is left-handed. It is especially used for a left-handed baseball pitcher or boxer. // The team’s new pitcher is a southpaw with a wicked knuckleball. See the entry > Examples: “The Sox southpaw’s perfect game bid ended when the Yankees loaded the bases with two outs in the fourth …” — Gabrielle Starr, The Boston Herald, 7 June 2026 Did you know? Sandy Koufax, Lefty Grove, Whitey Ford—there’s no doubt these southpaws are some of the greatest baseball players of all time. What is in doubt is the origin of the word southpaw. One popular theory ties it to the layout of baseball parks. To keep the afternoon sun out of batters’ eyes, diamonds were supposedly built so that the pitcher faced west, with their left arm, therefore, pointed south. This theory strikes out however, on account of the earliest known uses of the compound south paw referring simply to one’s left hand, unrelated to baseball. It wasn’t until later in the century that the word began to be used, via metonymy, first for a left-handed person, and then specifically for a left-handed pitcher.

  5. 4 days ago

    devolve

    Merriam-Webster's Word of the Day for August 26, 2026 is: devolve • \dih-VAHLV\  • verb To devolve is to gradually go from an advanced state to a less advanced state, or to pass something, such as responsibility or power, from one person or group to another at a lower level of authority. // Somehow the debate devolved into a petty competition to see who could get more applause. // Community leaders hope that the new government will devolve more power to the community itself. See the entry > Examples: “He accused board members of personally profiting from the parking and landscaping policies. Board meetings soon devolved into a cacophony of charges, countercharges and shouting.” — Elizabeth Williamson, The New York Times, 19 Nov. 2025 Did you know? Evolve? Check. Revolve? Check. Devolve? Now we’re on a roll—literally. All three of these words (and more) evolved from the Latin verb volvere, meaning “to set in a circular course, to cause to roll, to bring round.” The Latin ēvolvere means “to roll out or away”; revolvere means “to roll back to a starting point”; and dēvolvere means “to roll (something) down.” In its earliest uses in the 15th century, devolve literally meant “to roll onward or downward.” Today the word is typically used for a more figurative rolling down, as when an organization devolves power—that is, passes power down—to those at a lower level of authority, or when a deteriorating situation is described as “devolving into chaos.” One word, multiple uses. That’s just how English rolls.

  6. 5 days ago

    tilde

    Merriam-Webster's Word of the Day for August 25, 2026 is: tilde • \TIL-duh\  • noun Tilde refers to the mark ~ placed especially over the letter n (as in the Spanish señor, meaning "sir") to denote the sound \nʸ\, or over vowels (as in the Portuguese irmã, meaning "sister") to indicate nasality. When a tilde appears as an independent character, it usually means "approximately" (as in "we'll be there in ~ 30 minutes"). // A familiar example of the tilde appears in the name of Brazil's capital city, São Paulo. See the entry > Examples: "Californians with accents, tildes and other diacritical marks in their names will soon be able to have their vital records accurately reflect their names." — Linh Tat, Orange County (California) Register, 30 Dec. 2025 Did you know? The terms piña colada and La Niña share more than just a "cool" factor: both are Spanish loan words whose spellings include tildes, those wavy marks which in these examples are placed over the letter n to indicate a blend of the sounds of n and y. Tilde is itself a Spanish borrowing rooted in the Latin titulus, an ancestor of the English words title and titular that means "title" or "inscription." The Spanish and English applications of tilde are distinct. In Spanish, tilde refers most commonly to the accent symbol, while ñ is its own member of the alphabet (pronounced "EN-yay"). In contrast, English speakers use tilde specifically for the aforementioned mark. In addition to functioning as a diacritic—that is, a mark paired with a character to indicate pronunciation—the tilde may be used as an independent character to indicate approximation, negation in logic, or similarity in mathematics.

  7. 6 days ago

    expeditious

    Merriam-Webster's Word of the Day for August 24, 2026 is: expeditious • \ek-spuh-DISH-us\  • adjective Expeditious is a formal word that is used to describe someone acting in a quick and efficient way, or something done in such a manner. // Both sides hoped for an expeditious resolution of the dispute. See the entry > Examples: “Inspectors were on campus Friday afternoon with a certified arborist to determine which trees are protected and the extent to which any damage or removals have occurred, according to the city. ‘The City is prepared to conduct this inspection work in an expeditious manner and supports the goal of returning students to a safe campus as soon as possible,’ the city’s statement said.” — Ryan Carter, The Los Angeles Daily News, 10 July 2026 Did you know? Expeditious has had quite the journey through the English language. It comes to us from the related noun expedition, which in turn comes from the Latin verb expedire (“to set free” or “to make ready”). When expedition first set forth in English in the 1400s, it did so with two meanings that are still in use today, “a journey especially by a group of people for a specific purpose” and “efficient promptness.” Expeditious followed as an adjectival form of the latter. Something (such as, say, preparation for a long voyage) done expeditiously is done quickly and efficiently; in other words, it is expedited. Like expeditious and expedition, expedite too comes from expedire.

  8. 23 Aug

    prowess

    Merriam-Webster's Word of the Day for August 23, 2026 is: prowess • \PROW-us\  • noun Prowess refers to someone’s great ability, skill, or talent for something specified, as in “the pop star's vocal prowess” or “a lawyer of great prowess.” // Already a proven virtuoso on guitar, she extends her considerable instrumental prowess to the piano throughout her new album as well. See the entry > Examples: “On another Friday ... I led a nature writing workshop at the library’s Fowler branch. ... I had everyone draw a map of a place they loved and populate their maps with landmarks. Then we all went around and shared our drawings. Inevitably (after first acknowledging our lack of artistic prowess) stories emerged. Walks with long-gone, beloved dogs. Times someone had been caught out in bad weather.” — Steve Edwards, Literary Hub, 4 Dec. 2025 Did you know? Prowess is a word with a lot to be proud of. Not only has it performed gallantly for the English language since the 13th century, but it has stayed relatively stalwart in hewing to its original meaning, which is quite an accomplishment. When prowess first joined the ranks of the lexicon, it could be used to refer to bravery, skill, and valor—especially those virtues as encountered in military contexts—or to individual acts of derring-do. The latter was usually used in the plural, as when people waxed rhapsodic about the “prowesses” of knights or some such. Today’s “extraordinary ability” meaning, which developed in the 17th century, tends to stick to the singular form, as when it’s used to describe those with intellectual prowess, or to someone known for their prowess as a fundraiser.

  9. 22 Aug

    august

    Merriam-Webster's Word of the Day for August 22, 2026 is: august • \aw-GUST\  • adjective The word august, which is pronounced with the accent on "gust," describes someone or something marked by majestic dignity or grandeur. // We toured the old mansion's august halls and expansive grounds. See the entry > Examples: "His tone is temperate, but the words echo through the State Capitol’s Assembly chamber, the august backdrop for his speech." — Maya Singer, Vogue, 1 Feb. 2026 Did you know? The Roman republican calendar spanned just ten months, from March (then Martius) through December. The last five months were each named for their numerical place on the calendar: Quintilis (fifth), Sextilis (sixth), September (seventh), October (eighth), November (ninth), and December (tenth). January and February were eventually added to create a twelve-month year, obscuring the relationship between these months and their titles. So it was a welcome change when the Roman Senate honored Gaius Octavius (aka Octavian), the first Roman emperor, by changing Sextilis to Augustus—the designation taken by Octavian from the Latin adjective augustus meaning "worthy of honor" or "venerable." Although August has been the English name of the eighth month of the year since before the 12th century, it wasn't until the late 1500s that august came to be used as an adjective (pronounced \aw-GUST\), more or less as augustus was in Latin.

  10. 21 Aug

    rigmarole

    Merriam-Webster's Word of the Day for August 21, 2026 is: rigmarole • \RIG-uh-muh-rol\  • noun Rigmarole refers to a long, complicated, and annoying process, description, etc. // We went through the rigmarole of installing, registering, and activating the software before we found out it wouldn’t work. See the entry > Examples: “Over the last 10 years or so, I’ve had an on-again, off-again relationship with running. On the one hand, I love it for the mental benefits. My mind always feels clearer after a run and it can be an escape from the rigmarole of life. But on the other hand, it seems that every few years, some mild injury befalls me that slows my momentum, or I move to a new city and lose the routine of running at a time and place.” — Maura Fox, The San Diego Union-Tribune, 6 Sept. 2025 Did you know? In the Middle Ages, the term Rageman or Ragman referred to a game in which a player randomly selected a string attached to a roll of verses and read the selected verse. The roll was called a Ragman roll after a fictional king purported to be the author of the verses. By the 16th century, ragman and ragman roll were being used figuratively to mean “a list or catalog.” Both terms fell out of written use, but ragman roll persisted in speech, and in the 18th century it resurfaced in writing as rigmarole, with the meaning “a succession of confused, meaningless, or foolish statements.” In the mid-19th century rigmarole (also spelled rigamarole, reflecting its common pronunciation) acquired the sense referring to a complex and tedious procedure.

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