fortitude

noun2

1. •
   Mental or emotional strength that enables courage in the face of adversity.

   • I am able now (me thinkes) / (Out of a Fortitude of Soule, I feele) / To endure more Miseries, […] — 1613
2. •
   (no longer used) Physical strength.

   • The Turke with most mighty preparation makes for Cipres. Othello, the fortitude of the place, is best knowne to you, […] — 1603