moxie

If you have moxie, you won’t let a minor setback stop you from trying again, because you’re a determined person who doesn’t give up easily.

Moxie describes someone with a fighting spirit. A boxer needs moxie in order to get up after being punched in the face, and a computer programmer who spends years building a video game has a lot of moxie. The word moxie comes from a soft drink named Moxie that tastes like sugary cough medicine and claimed it would “build up your nerve.” Someone who is brave enough to drink an entire can of that curious beverage clearly has moxie.

Definitions of moxie
1

n fortitude and determination

Synonyms:
backbone, grit, gumption, guts, sand
Type of:
fortitude
strength of mind that enables one to endure adversity with courage