• adj. 突然的，意外的；快速的
• n. 突然發(fā)生的事

來自盎格魯諾曼法語 sudein,改寫自拉丁語 subitaneus,來自 subitus,突然的，來自 sub,在下， 向上，-it,走，詞源同 exit,itinerary.即向上走來的，引申詞義突然走來的，突然的。

sudden

sudden: [13] The etymological notion underlying sudden is of something approaching stealthily or without warning, so that it takes one by surprise. It comes via Anglo-Norman sudein from late Latin subitānus, an alteration of Latin subitāneus ‘sudden’. This was derived from subitus ‘sudden’, an adjectival use of the past participle of subīre ‘a(chǎn)pproach stealthily’. And subīre was a compound verb formed from the prefix sub-, used here in the sense ‘secretly’, and īre ‘go’ (source of English ambition, exit, issue, etc).
=> ambition, exit, issue

sudden (adj.)

early 14c., sodaine, from Anglo-French sodein or directly from Old French sodain, subdain "immediate, sudden" (Modern French soudain), from Vulgar Latin *subitanus, variant of Latin subitaneus "sudden," from subitus past participle of subire "go under; occur secretly, come or go up stealthily," from sub "up to" (see sub-) + ire "come, go" (see ion). "The present spelling was not finally established till after 1700" [OED].

Noun meaning "that which us sudden, a sudden need or emergency" is from 1550s, obsolete except in phrase all of a sudden first attested 1680s, also of a sudayn (1590s), upon the soden (1550s). Sudden death, tie-breakers in sports, first recorded 1927; earlier in reference to coin tosses (1834). Related: Suddenness.

1. "I think I'll try a hypnotist," I said with sudden resolution.

“我會找催眠師試試，”我突然堅決地說。

來自柯林斯例句

2. He felt a sudden sense of calm, of contentment.

他突然感到一種安寧和滿足.

來自柯林斯例句

3. The sudden onset of winter caused havoc with rail and air transport.

冬天的突然降臨讓鐵路和航空運輸系統(tǒng)陷入混亂。

來自柯林斯例句

4. A sudden break in the cloud allowed rescuers to spot Michael Benson.

天氣的突然放晴幫助救援人員找到了邁克爾·本森。

來自柯林斯例句

5. Wind caught the sudden puff of dust and blew it inland.

風猛地刮起一陣灰塵，將它吹往內(nèi)陸。

來自柯林斯例句