quarantine: [17] Quarantine denotes etymologically a period of ‘forty’ days. It goes back ultimately to Latin quadrāgintā ‘forty’, whose Italian descendant quaranta formed the basis of the noun quarantina ‘period of forty days’. English used it originally for a ‘period of forty days’ isolation’, but gradually the stipulation of the number of days faded out. => quarter
quarantine (n.)
1520s, "period of 40 days in which a widow has the right to remain in her dead husband's house." Earlier quarentyne (15c.), "desert in which Christ fasted for 40 days," from Latin quadraginta "forty," related to quattuor "four" (see four).
Sense of "period a ship suspected of carrying disease is kept in isolation" is 1660s, from Italian quarantina giorni, literally "space of forty days," from quaranta "forty," from Latin quadraginta. So called from the Venetian custom of keeping ships from plague-stricken countries waiting off its port for 40 days (first enforced 1377) to assure that no latent cases were aboard. The extended sense of "any period of forced isolation" is from 1670s.
quarantine (v.)
1804, from quarantine (n.). Related: Quarantined; quarantining.
实用例句
1. No mammals other than people may enter the country without lengthy quarantine.
除人之外，所有的哺乳动物进入这个国家都必须经过长期隔离。
来自柯林斯例句
2. The dog was kept in quarantine for six months.
这条狗被检疫隔离了六个月。
来自《权威词典》
3. The health officials placed the ship's crew in quarantine.