perfidy的词源

英文词源

perfidy: perfidy: see faith
perfidy (n.): 1590s, from Middle French perfidie (16c.), from Latin perfidia "faithlessness, falsehood, treachery," from perfidus "faithless," from phrase per fidem decipere "to deceive through trustingness," from per "through" (see per) + fidem (nominative fides) "faith" (see faith).
[C]ombinations of wickedness would overwhelm the world by the advantage which licentious principles afford, did not those who have long practiced perfidy grow faithless to each other. [Samuel Johnson, "Life of Waller"]

来自拉丁语perfidia,背叛，出卖，不忠，来自per-,整个的，-fid,相信，信任，词源同faith,confident.字面意思即完全信任，后词义讽刺化。比较perjury.

该词的英语词源请访问趣词词源英文版：perfidy 词源，perfidy 含义。