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social (adj.) • c.1500 (implied in socially), "characterized by friendliness or geniality," also "allied, associated," from M.Fr. social (14c.), from L. socialis "united, living with others," from socius "companion," probably originally "follower," and related to sequi "to follow" (cf. O.E. secg, O.N. seggr "companion," which seem to have been formed on the same notion; see sequel). Meaning "living or liking to live with others, disposed to friendly intercourse" is attested from 1729. Meaning "pertaining to society as a natural condition of human life" first attested 1695, in Locke.
problem • late 14c., "a difficult question proposed for solution," from O.Fr. problème (14c.), from L. problema, from Gk. problema "a problem, a question," lit. "thing put forward," from proballein "propose," from pro "forward" (see pro-) + ballein "to throw" (see ballistics). Meaning "a difficulty" is mid-15c. Problem child first recorded 1920.
idea • late 14c., "archetype of a thing in the mind of God; Platonic `idea,'" from L. idea "idea," and in Platonic philosophy "archetype," from Gk. idea "ideal prototype," lit. "the look of a thing (as opposed to the reality); form; kind, sort, nature," from idein "to see," from PIE *wid-es-ya-, suffixed form of root *weid- "to see" (see vision). Sense of "result of thinking" first recorded 1640s. Men of one idea, like a hen with one chicken, and that a duckling. [Thoreau, "Walden"]
ideology • 1796, "science of ideas," originally "philosophy of the mind which derives knowledge from the senses" (as opposed to metaphysics), from Fr. idéologie "study or science of ideas," coined by French philosopher Destutt de Tracy (1754-1836) from idéo- "of ideas," from Gk. idea (see idea) + -logy. Later used in a sense "impractical theorizing" (1813). Meaning "systematic set of ideas, doctrines" first recorded 1909. Ideology ... is usually taken to mean, a prescriptive doctrine that is not supported by rational argument. [D.D. Raphael, "Problems of Political Philosophy," 1970]
weltanschauung • 1868, from Ger. Weltanschauung, from welt "world" (see world) + anschauung "perception" (related to English show).
system • 1610s, "the whole creation, the universe," from L.L. systema "an arrangement, system," from Gk. systema "organized whole, body," from syn- "together" + root of histanai "cause to stand" from PIE root *sta- "to stand" (see stet). Meaning "set of correlated principles, facts, ideas, etc." first recorded 1630s. Meaning "animal body as an organized whole, sum of the vital processes in an organism" is recorded from 1680s; hence figurative phrase to get (something) out of one's system (1900). Computer sense of "group of related programs" is recorded from 1963. All systems go (1962) is from U.S. space program.
System: concepts • Holon • Equilibrium (Homeostasis) • Boundary • Open/Closed systems • Synergy/entropy • Morphostasis • Morphogenesis
paradigm • late 15c., from L.L. paradigma "pattern, example," especially in grammar, from Gk. paradeigma "pattern, model," from paradeiknynai "exhibit, represent," lit. "show side by side," from para- "beside" + deiknynai "to show" (cognate with L. dicere "to show;" see diction). Related: Paradigmatic.