warn

vt. 警告，提醒；通知

vi. 发出警告，发出预告

n. (Warn)人名；(英)沃恩；(德)瓦恩

中文词源

warn 提醒，警告

来自PIE*wer,覆盖，保护，看管，看护，词源同ward,ware。引申词义提醒，警告。词义演变比较monster,admonish.

warn: warn: [OE] Warn, and its German relative warnen, go back to a prehistoric West Germanic *warnōjan. This was formed from the base *war- ‘watch, be on one’s guard, take care’, which also produced English ward, ware, wary, etc. Germanic *warnjan, which evidently had close links with *warnōjan, was borrowed into French, and surfaced in English as garnish.
=> garnish, ward, ware, wary
warn (v.): Old English warnian "to give notice of impending danger," also intransitive, "to take heed," from Proto-Germanic *warnon (cognates: Old Norse varna "to admonish," Old High German warnon "to take heed," German warnen "to warn"), from PIE *wer- (5) "to cover" (see weir). Related: Warned; warning.

1. He spends his spare time visiting schools to warn pupils off drugs.: 他用自己的业余时间访问学校，告诫小学生远离毒品。

2. Signs across the entrances warn all visitors to stub out their cigarettes.: 入口处的告示牌提醒游客们熄灭香烟。

3. Lawrence kept on butting me but the referee did not warn him.: 劳伦斯不停地用头撞我，但是裁判并没有警告他。