Merriam-Webster's Word of the Day
Merriam-Webster
sagacious
In this episode of Merriam-Webster’s Word of the Day, the host explores the meaning and etymology of the adjective sagacious. Defined as having or showing the ability to understand difficult situations and make sound decisions, the term serves as a formal synonym for words like wise and discerning. To illustrate its usage, the host references a piece of music criticism that describes a lyrical insight as particularly sagacious. A significant portion of the discussion focuses on the word’s history. While one might assume a close linguistic connection to the word sage, the host clarifies that they are not etymologically related. Sagacious derives from the Latin verb sagire, which refers to keen perception, whereas sage comes from the Latin sapere, meaning to taste or be wise. Furthermore, the episode notes that when sagacious first entered the English language in the early 1600s, it actually described sensory keenness, particularly regarding smell and taste. Over time, the word evolved, shedding its literal sensory origins to become the term for sharp, intellectual judgment used by speakers and writers today.
Updated Jul 2, 2026
About This Episode
Merriam-Webster's Word of the Day for July 2, 2026 is:
sagacious \suh-GAY-shus\ adjective
Someone or something described as sagacious has or shows an ability to understand difficult ideas and situations and to make good decisions. Sagacious may be considered a formal synonym of wise and discerning.
// Student reviews paint the writing professor as a sagacious mentor and a compassionate teacher.
Examples:
“It’s a lyrical truism with the kind of wisdom that feels particularly sagacious only within the context of pop music: Of course breaking up is hard to do, but when expressed by [Neil] Sedaka at the end of each verse (and the beginning of each bridge) of his pained plea to his partner to ‘give our love another try,’ it feels like hard-earned insight.” — Andrew Unterberger, Billboard, 2 Mar. 2026
Did you know?
You might expect, wise word wonk that you are, that the word sagacious is etymologically linked with sage, which, as an adjective, means “wise” or, as a noun, “a wise person.” However, despite similarities of spelling, sound, and sense, the two words are not closely related. Sagacious comes from sagire, a Latin verb meaning “to perceive keenly,” while sage comes from a different Latin verb, sapere, which means “to taste,” “to have good taste,” or “to be wise.” Sagacious entered the English language around the beginning of the 17th century and, for some decades, referred to perceptiveness of sight, taste, and especially, smell, hewing close to its Latin ancestor. It has largely lost the sense (no pun intended) of sensory keenness, and now almost exclusively describes someone or something displaying keen, discerning judgment.
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