Are yams and sweet potatoes the same?
1905, from Anthony Comstock (1844-1915), founder of New York Society for the Suppression of Vice (1873) and self-appointed crusader against immorality, + -ery. Coined by George Bernard Shaw after Comstock objected to "Mrs. Warren's Profession." "Comstockery is the world's standing joke at the expense of the United States" [Shaw, "New York Times," Sept. 26, 1905]. The Comstock lode, silver vein in Nevada, was discovered 1859 and first worked by U.S. prospector H.T.P. Comstock (1820-1870).