Literary authors often invoke "perfidy" to evoke a sense of crushing betrayal and moral treachery. In narratives of personal relationships, it conveys the searing hurt of broken trust, as when the sting of dishonesty is compared to a knife wound ([1]) or when a beloved partner’s betrayal leaves deep emotional scars ([2], [3]). In historical and political contexts, the term becomes a powerful indictment of deceit and unfaithfulness in public affairs, characterizing acts of ruthless treachery by leaders and nations ([4], [5], [6], [7]). Poets likewise employ "perfidy" to intensify themes of inconstancy and the collapse of moral values, often intertwining it with images of cunning and calculated malice ([8], [9]). Across these varied settings, "perfidy" emerges as a potent emblem of both personal and institutional betrayal, a word that richly deepens the portrayal of characters and events fraught with moral ambiguity and lasting repercussions.