Etymology
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self-destruct (v.)

in reference to things, "destroy itself automatically;" see self- + destruct, apparently first attested in the U.S. television series "Mission Impossible" (1966). Self-destructive "having the property of annulling itself" is recorded from 1650s, and self-destruction "destruction of oneself, suicide" is attested from 1580s; self-destroying (n.) is from 1610s.

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self-esteem (n.)

1650s, "good opinion of oneself," especially "a too high estimate of oneself," from self- + esteem (n.). Popularized by phrenology, which assigned it a "bump" (Spurzheim, 1815). Related: Self-estimation.

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self-help (n.)

1831, "working for oneself without assistance from others," from self- + help (n.). Apparently coined by Carlyle. The British Self-Help Emigration Society is attested from 1887.

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self-educated (adj.)

"educated by one's own efforts alone, without regular training," 1761, from self- + educated.

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self-sacrifice (n.)

"sacrifice of what commonly constitutes the happiness of life for the sake of duty or higher motive," 1650s; see self + sacrifice (n.). Adjective self-sacrificed attested from 1711. Related: self-sacrificing.

Self-sacrifice goes beyond self-denial in necessarily including the idea of surrender, as of comfort, inclination, time, health, while being also presumably in the line of a real duty. [Century Dictionary]
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self-regulating (adj.)

"regulating itself," 1837, from self- + present participle of regulate (v.). Related: Self-regulated; self-regulation.

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self-taught (adj.)

"self-taught; educated by one's own efforts alone, without regular training," 1725; see self- + taught.

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self-improvement (n.)

"improvement of one's character, etc., by one's own efforts," 1745, from self- + improvement.

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self-respect (n.)

also self respect, "proper regard for and care of the dignity of one's person and character," 1795, from self- + respect (n.). Related: Self-respecting (1744).

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self-discipline (n.)

"ability to restrain or guide or control oneself," 1690s; see self- + discipline (n.). Related: Self-disciplined.

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