Sagacity (noun)

The quality of being wise and having good judgement.

Origin:

From the latin word "sagacitas" meaning "perception" or "wisdom", it first appeared in the 17th century.

Examples:

1. His sagacity in business dealings is unparalleled.
2. The sagacity of the leader helped him to make the right decision.
3. The sagacity of the old man was evident in his wise advice.
4. His sagacity helped him to understand the situation and act accordingly.
5. The sagacity of the judge was evident in the fair and impartial decision.