VIVAC'ITY, noun [Latin vivacitas.] 1. Liveliness; sprightliness of temper or behavior; as a lady of great vivacity 2. Air of life and activity; as vivacity of countenance. 3. Life; animation; spirits; as the vivacity of a discourse. 4. Power of living. [Not used.] 5. Longevity. [Not in use.]
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI