frustration (n.)

"act of frustrating, disappointment, defeat," 1550s, from Latin frustrationem (nominative frustratio) "a deception, a disappointment," noun of action from past-participle stem of frustrari "to deceive, disappoint, make vain," from frustra (adv.) "in vain, in error," which is related to fraus "injury, harm," a word of uncertain origin (see fraud). Earlier (mid-15c.) with a now-obsolete sense of "nullification."

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malpractice (n.)

1670s, "bad treatment of disease, pregnancy, or bodily injury from ignorance, carelessness, or with criminal intent," a hybrid coined from mal- + practice (n.). Also used for "illegal action by which a person seeks a benefit for himself while in a position of trust" (1758).

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black eye (n.)

"discoloration around the eye from injury" c. 1600, from black (adj.) + eye (n.). Figurative sense of "injury to pride, rebuff" is by 1744; that of "bad reputation" is from 1880s.

In reference to dark eyes, often as a mark of beauty, from 1660s. Black-eyed is from 1590s of women, of peas from 1728. The black-eyed Susan as a flower (various species) so called from 1881, for its appearance. It also was the title of a poem by John Gay (1685-1732), which led to a popular mid-19c. British stage play of the same name.

All in the Downs the fleet was moored,
  The streamers waving in the wind,
When black-eyed Susan came aboard,
  "Oh! where shall I my true love find?
Tell me, ye jovial sailors, tell me true,
If my sweet William sails among the crew?"
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malice (n.)

c. 1300, "desire to hurt another, propensity to inflict injury or suffering, active ill-will," from Old French malice "ill will, spite, sinfulness, wickedness" (12c.), from Latin malitia "badness, ill will, spite," from malus "bad, unpleasant" (see mal-). In legal use, "a design or intention of doing mischief to another without justification or excuse" (1540s).

Actual malice, express malice, malice in fact, malice in which the intention includes a contemplation of some injury to be done.—Constructive malice, implied malice, imputed malice, malice in law, that which, irrespective of actual intent to injure, is attributed by the law to an injurious act intentionally done, without proper motive, as distinguished from actual malice, either proved or presumed. Malice aforethought, or malice prepense, actual malice particularly in case of homicide. [Century Dictionary]
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negligence (n.)

"heedless disregard of duty, inactivity, indifference, habit of omitting to do things which ought to be done," mid-14c., necligence, from Old French negligence "negligence, sloth; injury, injustice" (12c.), and directly from Latin neclegentia, neglegentia "carelessness, heedlessness, neglect," from neglegentem (nominative neglegens) "heedless, careless, unconcerned," present participle of neglegere "to neglect" (see neglect (v.)).

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malefactor (n.)

mid-15c., malefactour, "a law-breaker, a criminal, a felon," from Latin malefactor, agent noun from past participle stem of malefacere "to do evil," from male "badly" (see mal-) + facere "to do, make" (from PIE root *dhe- "to set, put"). From late 15c. in the now-obsolete sense of "one who does evil or injury to another" (the opposite of benefactor).

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burst (n.)
1610s, "act of bursting, a violent rending; a sudden issuing forth," from burst (v.). Meaning "a spurt, an outburst" (of activity, etc.) is from 1862. Jane Austen, Coleridge, Browning use it in a sense of "a sudden opening to sight or view." The earlier noun berst (early Middle English) meant "damage, injury, harm."
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frustrate (v.)

"make of no avail, bring to nothing, prevent from taking effect or coming to fulfillment," mid-15c., from Latin frustratus, past participle of frustrari "to deceive, disappoint, make vain," from frustra (adv.) "in vain, in error," which is related to fraus "injury, harm," a word of uncertain origin (see fraud). Related: Frustrated; frustrating.

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backbiting (n.)
c. 1200, bacbitunge, "the sin of secretly attacking one's character or reputation through envy," from back (adj. or n.) + biting. Related: back-bite (v.) early 14c.; back-biter (c. 1200). The notion is of injury in a manner comparable to biting from behind. As an adjective Old English had bæcslitol; another old word for it was back-wounding (c. 1600).
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retaliate (v.)

"requite, repay, or return in kind," 1610s, from Latin retaliatus, past participle of retaliare "pay back in kind," from re- "back" (see re-) + Latin talio "exaction of payment in kind," from or influenced by talis "suchlike" (see that). Originally of kindness, civility, etc., but by 1630s of injury, ill-treatment, etc. (now the usual sense). Intransitive sense is from 1650s. Related: Retaliated; retaliating.

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