The historical root of swearing in English and many other languages is, oddly enough, religion. We see this in the Third Commandment, in the popularity of hell, damn, God, and Jesus Christ as expletives, and in many of the terms for taboo language itself: profanity (that which is not sacred), blasphemy (literally “evil speech” but, in practice, disrespect toward a deity), and swearing, cursing, and oaths, which originally were secured by the invocation of a deity or one of his symbols.In English-speaking countries today, religious swearing barely raises an eyebrow. Gone with the wind are the days when people could be titillated by a character in a movie saying “Frankly, my dear, I don’t give a damn.” If a character today is offended by such language, it’s only to depict him as an old-fashioned prude. The defanging of religious taboo words is an obvious consequence of the secularization of Western culture. As G. K. Chesterton remarked, “Blasphemy itself could not survive religion; if anyone doubts that, let him try to blaspheme Odin.” To understand religious vulgarity, then, we have to put ourselves in the shoes of our linguistic ancestors, to whom God and Hell werev a real presence.