Etymology
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loathe (v.)
Old English laðian "be hateful or displeasing," from lað "hated; hateful" (see loath). Cognate with Old Saxon lethon "be evil or hateful," Old Norse leiða "disgust." Main modern sense of "to hate, be disgusted with" is attested by c. 1200. Impersonal use (it loathes me = "I am disgusted with it") persisted through 16c. Related: Loathed; loathing.
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loathing (n.)
"abhorrence, revulsion; hatred," late 14c., verbal noun from loathe (v.). Old English had laðwendnes, from laðwende "hateful."
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abominate (v.)
"abhor, loathe," 1640s, a back-formation from abomination or else from Latin abominatus, past participle of abominari "shun as an ill omen." Related: Abominated; abominating. Middle English had noun, adjective, and adverb but seems to have lacked the verb. The Old French verb, abominer "to loathe" is said to have fallen out of use since 16c.
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nauseate (v.)

1630s, "to feel sick, to become affected with nausea" (intrans.), from nauseat- past-participle stem of Latin nauseare "to feel seasick, to vomit," also "to cause disgust," from nausea (see nausea). Related: Nauseated; nauseating; nauseatingly. In its early life it also had transitive senses of "to reject (food, etc.) with a feeling of nausea" (1640s), also figurative, "to loathe, to reject with disgust." Meaning "to create a loathing in, to cause nausea" is from 1650s. Careful writers use nauseated for "sick at the stomach" and reserve nauseous (q.v.) for "sickening to contemplate."

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abhor (v.)
Origin and meaning of abhor

c. 1400, "to loathe, regard with repugnance, dislike intensely," literally "to shrink back with horror or dread," from Latin abhorrere "shrink back from, have an aversion for, shudder at," from ab "off, away from" (see ab-) + horrere "tremble at, shudder," literally "to bristle, be shaggy," from PIE *ghers- "start out, stand out, rise to a point, bristle" (see horror).

Formerly also "fill (someone) with horror or loathing" (16c.). In Latin it was less intense: "be remote from, vary from, differ from, be out of harmony with." Related: Abhorred; abhorring.

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speech (n.)

Old English spæc "act of speaking; power of speaking; manner of speaking; statement, discourse, narrative, formal utterance; language," variant of spræc, from Proto-Germanic *sprek-, *spek- (source also of Danish sprog, Old Saxon spraca, Old Frisian spreke, Dutch spraak, Old High German sprahha, German Sprache "speech;" see speak (v.))

The spr- forms were extinct in English by 1200. Meaning "address delivered to an audience" first recorded 1580s.

And I honor the man who is willing to sink
Half his present repute for the freedom to think,
And, when he has thought, be his cause strong or weak,
Will risk t' other half for the freedom to speak,
Caring naught for what vengeance the mob has in store,
Let that mob be the upper ten thousand or lower.
[James Russell Lowell, "A Fable for Critics," 1848]
But when men have realized that time has upset many fighting faiths, they may come to believe even more than they believe the very foundations of their own conduct that the ultimate good desired is better reached by free trade in ideas — that the best test of truth is the power of the thought to get itself accepted in the competition of the market, and that truth is the only ground upon which their wishes safely can be carried out. That, at any rate, is the theory of our Constitution. It is an experiment, as all life is an experiment. ... I think that we should be eternally vigilant against attempts to check the expression of opinions that we loathe and believe to be fraught with death, unless they so imminently threaten immediate interference with the lawful and pressing purposes of the law that an immediate check is required to save the country. [Oliver Wendell Holmes Jr., dissent to "Abrams v. United States," 1919]
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