Etymology
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developmental (adj.)

"pertaining to development; formed or characterized by development," 1830, from development + -al (1). Developmentalist (1862) was a word for "follower of the theory of evolution."

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reflexology (n.)

1927, as a psychological theory, from German reflexologie (1912); see reflex + -ology. As a foot massage technique for releasing nervous tension, recorded by 1976.

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intelligent (adj.)
c. 1500, a back-formation from intelligence or else from Latin intelligentem (nominative intelligens), present participle of intelligere. Intelligent design, as a name for an alternative to atheistic cosmology and the theory of evolution, is from 1999. Related: Intelligently.
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Mendelism (n.)

theory of inheritance of characteristic by means of (what now are called) genes, 1903, in reference to the work of Gregor Johann Mendel (1822-1884), Austrian biologist who enunciated the laws of heredity. Related: Mendelian.

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oratory (n.1)

"formal public speaking; the art of eloquence," 1580s, from Latin (ars) oratoria "oratorical (art)," fem. of oratorius "of speaking or pleading, pertaining to an orator," from ōrare "to speak, pray, plead" (see orator).

Oratory is the art or the act of speaking, or the speech. Rhetoric is the theory of the art of composing discourse in either the spoken or the written form. Elocution is the manner of speaking or the theory of the art of speaking ...: the word is equally applicable to the presentation of one's own or of another's thoughts. [Century Dictionary]
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activism (n.)
1920 in the political sense of "advocating energetic action;" see active + -ism. Earlier (1907) it was used in reference to a philosophical theory. Compare activist.
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anomie (n.)
"absence of accepted social values," 1915, in reference to Durkheim, who gave the word its modern meaning in social theory in French; a reborrowing with French spelling of anomy.
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communalism (n.)

"theory or principles of government by independent communes," 1871 (in reference to Paris), from French communalisme; see communal + -ism. Perhaps coined to keep the idea distinct from communisme.

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rebarbative (adj.)

"repellent, unattractive," 1885, from French rébarbatif (14c.), from barbe "beard," from Latin barba (see barb (n.)). The usual theory is that it refers to the itchy, irritating quality of a beard.

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environmentalism (n.)
1923, as a psychological theory (in the nature vs. nurture debate), from environmental + -ism. The ecological sense is from 1972. Related: Environmentalist (n.), 1916 in the psychological sense, 1970 in the ecological sense.
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