pre-electric（adj.）
"发生或与使用电力之前的时间有关"，出自1879年，由 pre- 和 electric 组成。
Just as her father was thus summoned away, Lotty saw Fred in the distance, waving his arms, and looking like an animated semaphore of the pre-electric epoch. [Arthur Locker, "Tollit's Tragedy," in The Graphic, summer 1879]
正当她的父亲被召唤离开时，洛蒂看到弗雷德在远处挥舞着双臂，看起来像一个活生生的、属于电力之前时代的信号灯。[亚瑟·洛克，《图形报》，1879年夏季]
该词起源时间：1879年