• n. 疲劳，疲乏；杂役
• vt. 使疲劳；使心智衰弱
• vi. 疲劳
• adj. 疲劳的

fat-, 来自拉丁语fatisci, 拟声词，破裂声，开始裂开，-isci,起始动词后缀。-ig, 做，驱动，词源同exigent, agent. 即快断裂的，接近极限点的，词义引申人的极度疲劳，极限。

fatigue

fatigue: [17] In English a relatively formal term, fatigue goes back ultimately to a Latin expression roughly equivalent to the English notion of having ‘had it up to here’. It was borrowed from French fatiguer, a descendant of Latin fatigāre ‘tire’. This appears to have been related to the adverb affatim ‘sufficiently’, suggesting that underlying fatigāre was the idea of having ‘had enough’. The derivative indefatigable ‘tireless’ [16] comes from Latin indēfatigābilis.

fatigue (n.)

1660s, "that which causes weariness," from French fatigue "weariness," from fatiguer "to tire" (15c.), from Latin fatigare "to weary, to tire out," originally "to cause to break down," from pre-Latin adjective *fati-agos "driving to the point of breakdown," with first half from Old Latin *fatis, which is of unknown origin but apparently related to affatim (adv.) "sufficiently" and to fatisci "crack, split." The second half is the root of agere "to drive" (see act (n.)).

Especially "the labors of military persons" (1776). Meaning "a feeling of weariness from exertion" is from 1719. Of metals or other materials under strain, from 1877.

fatigue (v.)

1690s, from French fatiguer "to tire" (15c.), from fatigue (see fatigue (n.)). Earlier in same sense was fatigate (1530s), from Latin fatigatus, past participle of fatigare. Related: Fatigued; fatiguing; fatigation (c. 1500).

1. She continued to have severe stomach cramps, aches, fatigue, and depression.

她仍然患有严重的胃痉挛，感觉疼痛、疲乏、抑郁。

来自柯林斯例句

2. Coca is well-known for reducing hunger, thirst and fatigue.

人们都知道可乐能消饿、止渴和解乏。

来自柯林斯例句

3. Symptoms of anaemia include weakness, fatigue and iron deficiency.

贫血的症状包括虚弱、疲劳和缺铁。

来自柯林斯例句

4. He was punch-drunk with fatigue and depressed by the rain.

他疲惫不堪，头昏沉沉的，因为下雨情绪也很低落。

来自柯林斯例句

5. Chronic fatigue is also one of the salient features of depression.

慢性疲劳也是抑郁症的显著特点之一。

来自柯林斯例句