stamina
stam-i-na
noun
The ability to sustain prolonged physical or mental effort without tiring.
"Running a marathon requires immense stamina."
Thesaurus
Synonyms: staying power, toughness
stam-i-na
The ability to sustain prolonged physical or mental effort without tiring.
"Running a marathon requires immense stamina."
Synonyms: staying power, toughness