- Today's Word
Affable
AF-uh-buhl
Definition
(adjective) Friendly, approachable, and pleasant in manner.
Example
His affable nature made him an instant favorite at every party.
Fun Fact
From Latin affari, meaning “to speak to,” affable describes someone who not only talks to others—but makes them feel comfortable while doing it. It’s frequently used in character profiles, political campaigns, and even performance reviews. Being affable isn’t just about being nice—it’s about being welcoming without trying too hard.
(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.