• adj. 輕率的；魯莽的；不顧后果的
• n. [皮膚] 皮疹；突然大量出現的事物
• n. (Rash)人名；(英、以、阿拉伯)拉什

可能來自俗拉丁語*rasicare,刮，擦，來自拉丁語 radere,刮，擦，詞源同 rat,eraser.

rash

rash: English has two words rash. The older, ‘impetuous’ [14], probably comes from an unrecorded Old English *r?sc, which together with its relatives German rasch ‘quick’ and Swedish rask ‘active, vigorous’ goes back to a prehistoric Germanic *raskuz. This was probably derived from the same base as produced English rather, which originally meant ‘more quickly’. Rash ‘skin condition’ [18] may have been borrowed from the now obsolete French rache, a descendant of Old French rasche, whose Old Northern French counterpart *rasque is the possible source of English rascal.
=> rather; rascal

rash (adj.)

late 14c., "nimble, quick, vigorous" (early 14c. as a surname), a Scottish and northern word, perhaps from Old English -r?sc (as in ligr?sc "flash of lightning") or one of its Germanic cognates, from Proto-Germanic *raskuz (cognates: Middle Low German rasch, Middle Dutch rasc "quick, swift," German rasch "quick, fast"). Related to Old English horsc "quick-witted." Sense of "reckless, impetuous, heedless of consequences" is attested from c. 1500. Related: Rashly; rashness.

rash (n.)

"eruption of small red spots on skin," 1709, perhaps from French rache "a sore" (Old French rasche "rash, scurf"), from Vulgar Latin *rasicare "to scrape" (also source of Old Proven?al rascar, Spanish rascar "to scrape, scratch," Italian raschina "itch"), from Latin rasus "scraped," past participle of radere "to scrape" (see raze). The connecting notion would be of itching. Figurative sense of "any sudden outbreak or proliferation" first recorded 1820.

1. He may break out in a rash when he eats these nuts.

他吃了這些堅果可能會長皮疹。

來自柯林斯例句

2. Don't do anything rash until the feel-ings subside.

在冷靜下來之前不要魯莽行事。

來自柯林斯例句

3. Mr. Major is making no rash promises.

梅杰先生沒有作出輕率的承諾。

來自柯林斯例句

4. I woke up covered in a rash.

我醒來時長了一身皮疹。

來自《權威詞典》

5. My skin has broken out in an itchy rash.

我的皮膚上突然長出一片讓人發癢的皮疹.

來自《簡明英漢詞典》