perspicacity

/ˌpɜː.spɪˈkæs.ɪ.ti/

Etymology

From From perspicac(ious) + -ity, from Middle French perspicacité, from Latin perspicācitās (“sharpsightedness, discrimination”), from perspicio, from per- + specio, "see through (something)".

perspicacity means acute discernment or understanding; insight. Lexicurio rates it Rare gem — a strength score of 71 out of 100.

Why this word is great

PERSPICACITY — [Noun] Acute mental discernment or understanding; a penetrating clarity of insight. From the Latin perspicācitās ("sharp-sightedness, discrimination"), from perspicere ("to look through, see clearly"), from per- ("through") + specere ("to look, see"). Unlike acumen, which emphasizes swift, practical judgment in affairs, or sagacity, which implies the foresight of accumulated wisdom, perspicacity is the flash of lucid penetration. It is the detective isolating the single, telling contradiction in a flawless alibi; the chess master seeing the inevitable checkmate six moves deep in a seeming stalemate; or the quiet listener who, from a single frayed sentence, maps the whole unspoken history of a heart—the rare and unsettling gift of seeing the world as it truly is.

noun

Acute discernment or understanding; insight.“"I understand," I said. "The fact is that you have the money." His face brightened. He seemed pleased at my perspicacity.”
The human faculty or power to mentally grasp or understand clearly.“His very veneration for his father-in-law, combined as it is with a total want of the most ordinary perspicacity, is an additional disqualification.”
Keen eyesight.“Attentive consideration of the phenomena of vision has led to the invention of artificial aids by which the sight may be wonderfully strengthened and preserved, and man endowed at once with the perspicacity of the eagle or the minute scrutiny of the insect.”