Merriam-Webster's Word of the Day

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.

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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.

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.

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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.”

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.

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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.

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.

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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.

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.

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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.