Frá dictionary.com: quaker \Quak"er\, n. 1. One who quakes. 2. One of a religious sect founded by George Fox, of Leicestershire, England, about 1650, – the members of which call themselves Friends. They were called Quakers, originally, in derision. See Friend, n., 4. Fox's teaching was primarily a preaching of repentance . . . The trembling among the listening crowd caused or confirmed the name of Quakers given to the body; men and women sometimes fell down and lay struggling as if for life....