certain

来自PIE*krei, *sker, 切，分开。词源同crisis, crime, discriminate, shear.

certain

certain: [13] Certain comes ultimately from Latin certus ‘sure, fixed’, which derived from the past participle of the verb cernere ‘decide’. The Latin adjective was extended in Vulgar Latin to *certānus, which passed into English via Old French certain. Other English words based on certus include certify [14] (from late Latin certificāre) and its derivative certificate, and certitude [15] (from late Latin certitūdō).
=> crime, crisis, decree, discern, discrete, discriminate, excrement, riddle, secret

certain (adj.)

c. 1300, "determined, fixed," from Old French certain "reliable, sure, assured" (12c.), from Vulgar Latin *certanus, from Latin certus "sure, fixed, settled, determined" (also source of Italian certo, Spanish cierto), originally a variant past participle of cernere "to distinguish, decide," literally "to sift, separate" (see crisis).

Of persons, "full of confidence in one's knowledge or judgment," from mid-14c. Euphemistic use (of a certain age, etc.) attested from mid-18c. Certainer, certainest were common to c. 1750, but have fallen from proper use for some reason. Expression for certain "assuredly" is attested by early 14c.

1. There is a certain impatience among some of the soldiers.

有些士兵有点儿不耐烦。

来自柯林斯例句

2. Over the years he's demonstrated a certain prescience in foreign affairs.

这些年来，他已经在外交事务方面表现出一定的预见性。

来自柯林斯例句

3. I feel certain that it will all turn out well.

我觉得最后肯定会皆大欢喜。

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4. There are certain things he does that drive me mad.

他的某些举动让我很生气。

来自柯林斯例句

5. Parents can programme the machine not to turn on at certain times.

父母可以设定这台机器的程序，使它在特定时间段无法开启。

来自柯林斯例句