Stamina /(stăm"ĭ*nȧ)/

Stam·i·na

Stamina

n. pl.
  1. See Stamen.

Stamina

n. pl.
  1. The fixed, firm part of a body, which supports it or gives it strength and solidity; as, the bones are the stamina of animal bodies; the ligneous parts of trees are the stamina which constitute their strength.
  2. Whatever constitutes the principal strength or support of anything; backbone; vigor; as, the stamina of a constitution or of life; the stamina of a State.
    He succeeded to great captains who had sapped the whole stamina and resistance of the contest.
  3. The power of endurance; the ability to withstand fatigue, disease, deprivation, etc., and continue working.