Etymology
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social (adj.)

c. 1400, "devoted to or relating to home life;" 1560s as "living with others," from French social (14c.) and directly from Latin socialis "of companionship, of allies; united, living with others; of marriage, conjugal," from socius "companion, ally," probably originally "follower," from PIE *sokw-yo-, suffixed form of root *sekw- (1) "to follow." Compare Old English secg, Old Norse seggr "companion," which seem to have been formed on the same notion). Related: Socially.

Sense of "characterized by friendliness or geniality" is from 1660s. Meaning "living or liking to live with others; companionable, disposed to friendly intercourse" is from 1720s. Meaning "of or pertaining to society as a natural condition of human life" first attested 1695, in Locke. Sense of "pertaining to fashionable society" is from 1873.

Social climber is from 1893; social work is 1890; social worker 1886. Social drinking first attested 1807. Social studies as an inclusive term for history, geography, economics, etc., is attested from 1916. Social security "system of state support for needy citizens" is attested from 1907 (the Social Security Act was passed by U.S. Congress in 1935). Social butterfly is from 1867, in figurative reference to "flitting."

Social contract (1763) is from translations of Rousseau. Social Darwinism attested from 1887. Social engineering attested from 1899. Social science is from 1785. In late 19c. newspapers, social evil is "prostitution." Social network is attested by 1971; social networking by 1984; social media by 2008. Social justice is attested by 1718.

I must introduce a parenthetical protest against the abuse of the current term 'social justice'. From meaning 'justice in relations between groups or classes' it may slip into meaning a particular assumption as to what these relations should be; and a course of action might be supported because it represented the aim of 'social justice', which from the point of view of 'justice' was not just. The term 'social justice' is in danger of losing its rational content—which would be replaced by a powerful emotional charge. I believe that I have used the term myself: it should never be employed unless the user is prepared to define clearly what social justice means to him, and why he thinks it just. [T.S. Eliot, footnote in "Notes Towards the Definition of Culture," 1948]
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social (n.)
"friendly gathering," 1870, from social (adj.). In late 17c. it meant "a companion, associate."
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structure (n.)
mid-15c., "action or process of building or construction;" 1610s, "that which is constructed, a building or edifice;" from Latin structura "a fitting together, adjustment; a building, mode of building;" figuratively, "arrangement, order," from structus, past participle of struere "to pile, place together, heap up; build, assemble, arrange, make by joining together," related to strues "heap," from PIE *streu-, extended form of root *stere- "to spread."
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structure (v.)
"put together systematically," by 1855 (occasional use from late 16c.), from structure (n.). Related: Structured; structuring.
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barbecue (n.)
1690s, "framework for grilling meat, fish, etc.," from American Spanish barbacoa, from Arawakan (Haiti) barbakoa "framework of sticks set upon posts," the raised wooden structure the West Indians used to either sleep on or cure meat. Sense of "outdoor feast of roasted meat or fish as a social entertainment" is from 1733; modern popular noun sense of "grill for cooking over an open fire" is from 1931.
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psychosocial (adj.)

also psycho-social, "pertaining to or involving the influence of social factors on a person's mind or behavior," 1891, from psycho- + social (adj.).

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asocial (adj.)
1883, "antagonistic to society or social order," from a- (3) "not" + social (adj.); also compare antisocial.
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antisocial (adj.)

also anti-social, "unsocial, averse to social intercourse," 1797, from anti- + social (adj.). The meaning "hostile to social order or norms" is from 1802. Other, older words in the "disinclined to or unsuited for society" sense include dissocial (1762), dissociable (c. 1600).

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morphology (n.)

1824 in biology, "science of the outer form and inner structure of animals and plants," from German Morphologie (1817); see morpho- "shape" + -logy "study of." By 1869 in philology, "science of structure or forms in language." General sense of "shape, form, external structure or arrangement" is by 1890. Related: Morphological; morphologist. Related: Morphologist.

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