The word 'perfidy' is correct and usable in written English.
It can be used to describe an act of deliberate betrayal or deception, such as someone breaking a promise or agreement. For example, "The perfidy of his lies became increasingly obvious as more evidence emerged."
Paul has been sly about positioning on this, however; at the Value Voters conference earlier this month, Paul gave a rousingly xenophobic speech heavy on Biblical allusions to Muslims' perfidy… he just declined to say we should bomb them.
Anyone can get outraged at an email accusing someone of perfidy, treason, dishonesty or failing to honour campaign promises.
Now they and their backers are reeling under a wave of popular indignation at such perfidy and of enthusiasm for a return to armed opposition to Israel.Egypt is a typical example.
By heav'n I'm sent, thy perfidy to witness; And to prevent thee From deluding this poor girl's experience With thy treacherous language".The girls gang up, the authorities are summoned.
The Indians never believed him and now, they say, evidence of his perfidy is in.
All had an interest in keeping the memory of Catholic perfidy alive.
They sent armoured columns to bolster the ruling Al Khalifa family in its fierce crackdown on unarmed protesters, and have loudly portrayed their small neighbour's crisis as an example of Shia perfidy, sponsored by the arch-enemy Iran.
Citing unnamed Egyptian officials, the same newspaper floated charges that Iranian intelligence agents were responsible for the kidnap and murder of Egypt's ambassador in Iraq in July 2005.A similar campaign has unfolded in Saudi Arabia, where increasingly internet chat sites, several of which are widely believed to be infiltrated by police agents, are rife with spurious tales of Shia perfidy.
Chinese schoolchildren are taught about the sack of the summer palace as a proof of western perfidy and the weakness of the last imperial dynasty, the Qing, which was unable to prevent foreign barbarians from wreaking terrible humiliations on the Middle Kingdom.
Some of them are unworthy (with anti-Semitism a constant theme) but most centre on the idea that the winners relied on perfidy and violence abroad and cruelty and inequality at home.
Islamist allies deepened anxieties by muttering darkly of plots against them, openly insinuating Christian perfidy.
