- Today's Word
Lithe
LYTH (rhymes with “blithe”)
Definition
- (adjective) Flexible, graceful, and fluid in movement; supple or easily bent.
Example
The gymnast’s lithe movements on the balance beam captivated the audience with their effortless beauty.
Fun Fact
“Lithe” originates from the Old English word līðe, meaning “soft, gentle, or mild,” and is closely related to the Germanic root for “bendable” or “pliant.” Historically, it was used to describe not just physical flexibility but also gentleness in character. By the Middle Ages, the word’s association with physical agility became more prominent, especially in reference to animals, dancers, and even the “lithe wood” prized by Viking shipbuilders for its ability to flex without breaking. Its elegant simplicity has kept it a favorite in poetic and descriptive language over centuries.
(adjective) Capable of producing the desired result; successful in achieving the intended outcome.
The new treatment proved remarkably efficacious in clinical trials, reducing symptoms in over ninety percent of patients within the first two weeks.
Efficacious derives from the Latin efficax, meaning “powerful” or “effectual,” rooted in efficere — “to bring about” or “to accomplish” — built from ex- (“out”) and facere (“to make” or “to do”). The same root gives us effect, efficient, and efficacy — a family of words all built around the idea of something being done and producing a result. It entered English in the 16th century, used predominantly in medical and philosophical contexts to describe remedies or arguments that actually worked.