Emily Dickinson Lexicon

FA-TIGUE', n. [fatee'g; Fr. id.; Arm. faticq; It. fatica; Sp. fatiga; from L. fatigo. It seems to be allied to L. fatisco; if so, the sense is a yielding or relaxing.]

1. Weariness with bodily labor or mental exertion; lassitude or exhaustion of strength. We suffer fatigue of the used as well as of the body.
2. The cause of weariness; labor; toil; as, the fatigues of war.
3. The labors of military men, distinct from the use of arms; as, a party of men on fatigue.