stamina
Concise Oxford English Dictionary © 2008 Oxford University Press:
stamina/ˈstamɪnə/
▶noun the ability to sustain prolonged physical or mental effort.
– origin C17 (in the sense ‘rudiments, essential elements of something’): from L., pl. of stamen in the sense ‘threads spun by the Fates’.
'stamina' also found in these Oxford entries:
