sage
Word family
- sagelyadverbC2
- sagaciousadjectiveC2
- sagacitynounC2
Synonym discussion
Sense: adjective/1
All three describe good judgment, but they differ in register and scope. Wise is the everyday term — it applies broadly to a person, a decision, or an action and carries no special formality. Sage is less common and sits somewhere between wise and literary; it would describe someone's counsel or observation rather than the person themselves in most modern usage. Prudent narrows the focus to caution and careful risk-assessment: a prudent investor avoids losing money, while a sage investor may also understand the broader market story. Sagacious is the rarest and most formal of the three; it belongs to philosophical or academic prose and sounds unnatural in conversation. For example, a friend might give you wise advice about a relationship, a financial planner might give prudent advice about your pension, but a novelist would describe an old mentor's sage counsel or a character's sagacious observations about human nature.
Etymology
Sage entered English through Old French sage (wise, knowing), which came from Vulgar Latin *sapius, derived from Latin sapere — a verb meaning both 'to have good taste' and 'to be wise'. This dual meaning survives in the English herb sense (something you taste) and the wisdom sense (someone whose judgment you value). The two strands of meaning separated early in French, and both travelled into English by the 13th–14th centuries.
First known use
13th century
13th century, in the meaning defined at sense 2a Adjective