1973 as a strategy of critical analysis, in translations from French of the works of philosopher Jacques Derrida (1930-2004). The word was used in English in a literal sense from 1865 of building and architecture, "a taking to pieces," and in late 1860s sometimes as an ironic variant of Reconstruction in the U.S. political sense. Related: Deconstructionism; deconstructionist.
1610s, from Dutch Sennecas, collective name for the Iroquois tribes of what became upper New York, of uncertain origin, perhaps from a Mahican name for the Oneida or their village. Earlier sinnekens, senakees; the form of the English word probably was influenced by the name of the ancient Roman philosopher. The name sometimes was used by Americans for all the Iroquois.
"restraint of one's desires," 1711, from self- + control (n.). Coined by English moral philosopher Anthony Ashley-Cooper, Earl of Shaftesbury (1671-1713). Related: Self-controlled; self-controlling. He also used self-command "that equanimity which enables one in any situation to be reasonable and prudent" (1690s).