forties (n.)
“40年代”最初指某人40至49岁的年龄段； 从1840年开始，指给定世纪的第五个十年。请参见 forty。在不同的地方和时期，也用于指特定的寡头统治阶层或执政机构。
It is well known that society in the island [Guernsey] is, or perhaps we ought to say, for many years was, divided into two sets, called respectively the Sixties and the Forties, the former composed of the old families and those allied to them, the latter of families of newly-acquired wealth and position. [The Dublin Review, October 1877]
众所周知，岛上（根西岛）的社会被分为两个集团，分别称为“六十年代”和“四十年代”，前者由老家族和与他们结盟的人组成，后者由新获得财富和地位的家族组成。[《都柏林评论》，1877年10月]
Roaring Forties 是指位于40至50度纬度之间的海洋中的波涛汹涌的区域。
最早记录年份: 1843