epidemic (adj.)
c. 1600, "common to or affecting a whole people," originally and usually, though not etymologically, in reference to diseases, from French épidémique, from épidemié "an epidemic disease," from Medieval Latin epidemia, from Greek epidemia "a stay in a place; prevalence of an epidemic disease" (especially the plague), from epi "among, upon" (see epi-) + dēmos "people, district" (see demotic). Also see -ic.
epidemic (n.)
1757, "an epidemic disease, a temporary prevalence of a disease throughout a community," from epidemic (adj.); earlier epideme (see epidemy). An Old English noun for this (persisting in Middle English) was man-cwealm.
流行病
c、 1600年，“对全体人民共同的或影响全体人民的”，最初和通常，虽然不是词源学上的，但指的是疾病，来自法语的“流行病”，来自“流行病”，来自中世纪拉丁语的“流行病”，来自希腊语的“呆在一个地方；流行病的流行”（特别是瘟疫），来自epi的“在，在”，见epi-+dēmos“人民，地区”（见通俗）。另见-ic。
1757年，“一种流行病，一种疾病在整个社区的暂时流行”，来自流行病（形容词）；早期流行（见流行）。一个古老的英语名词是man cwealm。
http://www.etymon.cn/yingyucizhui/yingyuhouzhui/42948.html
