physical or nervous exhaustion
the tendency of a material to break under repeated stress
reluctance to respond further to a need, etc because of over-exposure or repeated demands
compassion fatigue
manual or menial military work
(in pl) the uniform or work clothing worn on fatigue
(used before a noun) being part of fatigues
a fatigue cap
[French fatigue, from fatiguer to fatigue, from Latin fatigare, from ad fatim to bursting]