fatigue

n. 1 extreme tiredness. 2 weakness in metals etc. Caused by repeated stress. 3 a non-military army duty. B (in pl.) Clothing worn for this. v. (-gues, -gued, -guing) cause fatigue in. [latin fatigo exhaust]

n. Weariness from bodily labor or mental exertion; lassitude or exhaustion of strength.