Etymology
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malign (v.)

"to slander, speak evil of, defame," mid-15c., malignen (originally with against), from Old French malignier "to plot, deceive, pervert" and directly from Late Latin malignare "to do maliciously," from malignus "wicked, bad-natured, mean, unkind" (see malign (adj.)). Related: Maligned; maligning.

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malign (adj.)

early 14c., of things or behaviors, "wicked, sinful;" mid-15c., of persons, "having an evil disposition toward others, harboring violent hatred," from Old French maligne "having an evil nature," from Latin malignus "wicked, bad-natured," from male "badly" (see mal-) + -gnus "born," from gignere "to bear, beget," from PIE root *gene- "give birth, beget."

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maligner (n.)

early 15c., malignour, "one who traduces or defames another," from Old French malignor, agent noun from malignier (see malign (v.)).

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*mel- (3)

Proto-Indo-European root meaning "false, bad, wrong." The exact sense of the root remains uncertain, "since it concerns a collection of largely isolated words in different IE branches" [de Vaan].

It forms all or part of: blame; blaspheme; blasphemous; blasphemy; ‌‌dismal; mal-; malady; malaise; malaria; malediction; malefactor; malefic; malevolence; malevolent; malice; malicious; malign; malison; malversation; mauvais.

It is the hypothetical source of/evidence for its existence is provided by: Avestan mairiia‑, "treacherous;" Greek meleos "idle; unhappy;" Latin male (adv.) "badly," malus (adj.) "bad, evil;" Old Irish mell "destruction;" Armenian mel "sin;" Lithuanian melas "lie," Latvian malds "mistake," possbily also Greek blasphemein "to slander." 

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*gene- 

*genə-, also *gen-, Proto-Indo-European root meaning "give birth, beget," with derivatives referring to procreation and familial and tribal groups.

It forms all or part of: Antigone; autogenous; benign; cognate; congener; congenial; congenital; connate; cosmogony; cryogenic; degenerate; engender; engine; epigone; eugenics; -gen; gendarme; gender; gene; genealogy; general; generate; generation; generic; generous; genesis; -genesis; genial; -genic; genital; genitive; genius; genocide; genotype; genre; gens; gent; genteel; gentile; gentle; gentry; genuine; genus; -geny; germ; german (adj.) "of the same parents or grandparents;" germane; germinal; germinate; germination; gingerly; gonad; gono-; gonorrhea; heterogeneous; homogeneous; homogenize; homogenous; impregnate; indigenous; ingenious; ingenuous; innate; jaunty; kermes; kin; kindergarten; kindred; king; kind (n.) "class, sort, variety;" kind (adj.) "friendly, deliberately doing good to others;" Kriss Kringle; malign; miscegenation; nada; naive; nascent; natal; Natalie; nation; native; nature; nee; neonate; Noel; oncogene; ontogeny; photogenic; phylogeny; pregnant (adj.1) "with child;" primogenitor; primogeniture; progenitor; progeny; puisne; puny; renaissance; theogony; wunderkind.

It is the hypothetical source of/evidence for its existence is provided by: Sanskrit janati "begets, bears," janah "offspring, child, person," janman- "birth, origin," jatah "born;" Avestan zizanenti "they bear;" Greek gignesthai "to become, happen," genos "race, kind," gonos "birth, offspring, stock;" Latin gignere "to beget," gnasci "to be born," genus (genitive generis) "race, stock, kind; family, birth, descent, origin," genius "procreative divinity, inborn tutelary spirit, innate quality," ingenium "inborn character," possibly germen "shoot, bud, embryo, germ;" Lithuanian gentis "kinsmen;" Gothic kuni "race;" Old English cennan "beget, create," gecynd "kind, nature, race;" Old High German kind "child;" Old Irish ro-genar "I was born;" Welsh geni "to be born;" Armenian cnanim "I bear, I am born."

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leer (n.)

"a significant glance, amorous or malign or both," 1590s, from leer (v.).

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malignant (adj.)

1560s, in reference to diseases, "virulent, tending to produce death," from French malignant and directly from Late Latin malignantem (nominative malignans) "acting from malice," present participle of malignare "injure maliciously," from Latin malignus "wicked, bad-natured," from male "badly" (see mal-) + -gnus "born," from gignere "to bear, beget" (from PIE root *gene- "give birth, beget").

Earlier in the church malignant "followers of the antichrist," from Latin ecclesiam malignantum in early Church writing, applied by Protestant writers to the Church in Rome (1540s). Of persons, "disposed to inflict suffering or cause distress," from 1590s. As an adjective, Middle English used simple malign (early 14c.), also malignous "poisonous, noxious." Related: Malignantly.

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envy (n.)

late 13c., from Old French envie "envy, jealousy, rivalry" (10c.), from Latin invidia "envy, jealousy" (source also of Spanish envidia, Portuguese inveja), from invidus "envious, having hatred or ill-will," from invidere "to envy, hate," earlier "look at (with malice), cast an evil eye upon," from in- "upon" (from PIE root *en "in") + videre "to see" (from PIE root *weid- "to see").

Jealousy is the malign feeling which is often had toward a rival, or possible rival, for the possession of that which we greatly desire, as in love or ambition. Envy is a similar feeling toward one, whether rival or not, who already possesses that which we greatly desire. Jealousy is enmity prompted by fear; envy is enmity prompted by covetousness. [Century Dictionary]

Similar formations in Avestan nipashnaka "envious," also "look at;" Old Church Slavonic zavideti "to envy," from videti "to see;" Lithuanian pavydėti "to envy," related to veizdėti "to see, to look at."

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persecution (n.)

mid-14c., persecucioun, "oppression for the holding of a belief or opinion," from Old French persecucion "persecution, damage, affliction, suffering" (12c.) and directly from Latin persecutionem (nominative persecutio), noun of action from past-participle stem of persequi "to follow, pursue, hunt down; proceed against, prosecute, start a legal action," from per "through" (from PIE root *per- (1) "forward," hence "through") + sequi "follow" (from PIE root *sekw- (1) "to follow").

General senses of "malevolent oppression, harassing or oppressive treatment," also "a time of general or systematic oppression" are from late 14c. Psychological persecution complex in reference to an irrational sense of being victimized by malign forces as a feature of a mental disorder is recorded from 1961; the earlier phrase for it was persecution mania (1892).

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