(1):
(n.) Weariness from bodily labor or mental exertion; lassitude or exhaustion of strength.
(2):
(n.) The cause of weariness; labor; toil; as, the fatigues of war.
(3):
(n.) The weakening of a metal when subjected to repeated vibrations or strains.
(4):
(n.) To weary with labor or any bodily or mental exertion; to harass with toil; to exhaust the strength or endurance of; to tire.