Merriam-Webster's Word of the Day for October 12, 2025 is:

imprimatur • \im-pruh-MAH-toor\  • noun

Imprimatur is a formal word that refers to explicit approval or permission.

// Though not an official project of the theater, the drama festival has its imprimatur.

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Examples:

“It is not overstating to say that [Frederick] Douglass was a baseball man. He attended games, supported his sons’ involvement, and even played catch with his grandchildren. Douglass’s support gave Black baseball an imprimatur of race approval as an activity that uplifted the race. It was not frivolous for Black men to pursue this sport as an avocation, or even as a vocation.” — Gerald Early, Play Harder: The Triumph of Black Baseball in America, 2025

Did you know?

Imprimatur means “let it be printed” in New Latin (the Latin used since the end of the medieval period especially in science). It comes from Latin imprimere, meaning “to imprint or impress.” In the 1600s, the word appeared in the front matter of books, accompanied by the name of an official authorizing the book’s printing. In time, English speakers began using imprimatur in the general sense of “official approval.”

Merriam-Webster's Word of the Day for October 11, 2025 is:

languid • \LANG-gwid\  • adjective

Something described as languid shows or has very little energy, force, or activity.

// We paddled at a languid pace, in no hurry to arrive at our picnic destination.

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Examples:

“The flat once belonged to 19th-century French writer George Sand, and is now a handsome apartment with sleek decor and elevated amenities that will make it easy to enjoy languid afternoons sipping on a glass of wine and perusing the owner’s extensive literary collection.” — Elise Taylor, Nicole Kliest, and Elly Leavitt, Vogue, 8 Aug. 2025

Did you know?

Lack, lack, lack. Languid is all about lack. Depending on its context, the word can suggest a lack of strength or force, a lack of energy, or a lack of activity. The lack-of-strength/force sense of languid describes the kind of sluggishness that often results from fatigue or weakness, as in “the illness left her feeling languid.” The lack-of-energy sense is synonymous with listless, and often describes someone’s character or disposition as a result of dissatisfaction or sadness. Lastly, there’s the lack-of-activity sense of languid, as in “investors are worried about the languid stock market.” So languid is a total bummer, right? Not so (ahem) fast! Sometimes it’s a good thing to dillydally, and languid has also long been used to describe stretches of time—think afternoons, days, summers, etc.—that are relatively and perhaps pleasantly chill.

Merriam-Webster's Word of the Day for October 10, 2025 is:

obviate • \AHB-vee-ayt\  • verb

To obviate something (usually a need for something, or a necessity) is to anticipate and prevent it. A formal word, obviate can also mean "to make an action unnecessary."

// The new medical treatment obviates the need for surgery.

// Allowing workers flexibility should obviate any objections to the change.

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Examples:

"In 1987, a new kind of computer workstation debuted from Sun Microsystems. These workstations, as well as increasingly powerful desktop computers from IBM and Apple, obviated the need for specialized LISP machines. Within a year, the market for LISP machines evaporated." — Jeremy Kahn, Fortune, 3 Sept. 2025

Did you know?

It's most often needs that get obviated. And a need that's obviated is a need that's been anticipated and prevented. That sentence may obviate your need to consult the definition again, for example. Obviate comes ultimately from the Latin adjective obviam, meaning "in the way," and obviating does often involve figuratively putting something in the way, as when an explanatory sentence placed just so blocks a need to consult a definition. (Obviam is also an ancestor of our adjective obvious.) Obviate has a number of synonyms in English, including prevent, preclude, and avert, which all can mean "to hinder or stop something." Preclude often implies that a degree of chance was involved in stopping an event, while avert always implies that a bad situation has been anticipated and prevented or deflected by the application of immediate and effective means. Obviate generally suggests the use of intelligence or forethought to ward off trouble.