All sorts of profitable Perfidies were possible.
"Space Viking"
Henry Beam Piper
Mary herself, fretted by the Perfidies of Elizabeth, had just been consoled by that symbolic jewel, a diamond shaped like a rock, and by promises in which she fondly trusted when she at last sought an asylum in England, and found a prison.
"John Knox and the Reformation"
Andrew Lang
Spendius asked himself; and as he expected to profit by every disorder, he felt grateful to Narr' Havas for the future Perfidies of which he suspected him.
"Salammbo"
Gustave Flaubert