perfidy

名词 perfidy:

1. betrayal of a trust
   同义词：perfidiousness, treachery
2. an act of deliberate betrayal
   同义词：treachery, betrayal, treason

per.fi.dy

n.（名词）
【复数】 per.fi.dies
Deliberate breach of faith; calculated violation of trust; treachery.
缺乏诚意：故意的违背信义；故意的破坏信任；欺诈
The act or an instance of treachery.
欺诈的实例或行动

来源：
Latin perfidia
拉丁语 perfidia
from perfidus [treacherous]
源自 perfidus [欺骗的]
per [through] * see per
per [通过] *参见 per
fidôs [faith] * see bheidh-
fidôs [忠实的] *参见 bheidh-