1540s, "condition of being a lunatic," formed in English from lunatic + -cy. Originally in reference to intermittent periods of insanity, such as were believed to be triggered by the moon's cycle. The Old English equivalent was monaeseocnes "month-sickness."
雙語例句
1. "That's lunacy," he blustered.
“那真是瘋了，”他吼道。
來自柯林斯例句
2. It's sheer lunacy driving in such weather.
天氣這樣糟糕還開車，真是瘋了。
來自《權威詞典》
3. It remains lunacy to produce yet more coal to add to power stations' stockpiles.
煤越產越多，而發電站的煤堆越來越高，這始終是愚蠢的行為。
來自柯林斯例句
4. O'Brien had tortured him to the edge of lunacy.
奧勃良快把他折磨到了神經錯亂的地步.
來自辭典例句
5. This is sheer cock - eyed lunacy, absolute lunacy.