vitality

noun, plural vi·tal·i·ties.

1. exuberant physical strength or mental vigor: a person of great vitality.
2. capacity for survival or for the continuation of a meaningful or purposeful existence: the vitality of an institution.
3. power to live or grow: the vitality of a language.
4. vital force or principle.

noun plural -ties

1. physical or mental vigour, energy, etc
2. the power or ability to continue in existence, live, or growthe vitality of a movement
3. a less common name for vital force

n.

1590s, from Latin vitalitas, from vitalis “pertaining to life” (see vital).

n.

1. The capacity to live, grow, or develop.
2. Physical or intellectual vigor; energy.