The property of being brisk.

plural of briskness

Full of liveliness and activity; characterized by quickness of motion or action. / Full of spirit of life; effervescing. / (archaic) Sparkling; fizzy. / Stimulating or invigorating.

(transitive, intransitive, often with "up") To make or become lively; to enliven; to animate.

present participle of brisk

simple past tense and past participle of brisk

Third-person singular simple present indicative form of brisk

To enliven or invigorate.