Etymology
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guesstimate (v.)

1902, a blending of guess (v.) and estimate (v.). Related: Guesstimated; guesstimating. As a noun from 1906.

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blend (n.)

"mixture formed by blending," 1860, from blend (v.).

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galumph (v.)

"to prance about in a self-satisfied manner," 1871, coined by Lewis Carroll in "Jabberwocky," apparently by blending gallop and triumph. "The sense in current use may vary according to different notions of what the sound expresses" [OED]. Related: Galumphing.

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rockabilly (n.)

type of popular music blending elements of rock 'n' roll and hillbilly music, 1956, from rock (n.2) in the music sense + second element abstracted from hillbilly music. One of the first uses is in a Billboard magazine item about Johnny Burnette's "Lonesome Train."

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meddling (n.)

mid-14c., "action of blending," verbal noun from meddle (v.). Meaning "act or habit of interfering in matters not of one's proper concern" is from late 14c. As a present-participle adjective, from 1520s. Related: Meddlingly.

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preprocess (v.)

also pre-process, "subject to preliminary processing," 1956, from pre- "before" + process (v.). Related: Preprocessed; preprocessing.

Preprocessed foods are not only here but are gaining such a tremendous acceptance that soon there will be little else on the market. This eliminates the need for mixing, peeling, blending and other devices used in the preparation of raw foods. [Popular Mechanics, October 1956]
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blend (v.)

c. 1300, blenden, "to mix in such a way as to become inextinguishable, mingle, stir up a liquid," in Middle English chiefly in northern writers, from or akin to rare Old English blandan "to mix" (Mercian blondan) or Old Norse blanda "to mix," or a combination of the two; from Proto-Germanic *blandan "to mix," which comes via a notion of "to make cloudy" from an extended Germanic form of the PIE root *bhel- (1) "to shine, flash, burn."

Compare Old Saxon and Old High German blantan, Gothic blandan, Middle High German blenden "to mix;" German Blendling "bastard, mongrel," and, outside Germanic, Lithuanian blandus "troubled, turbid, thick;" Old Church Slavonic blesti "to go astray." The figurative sense of "mingle closely" is from early 14c. Related: Blended; blending.

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fade (v.)

early 14c., "lose brightness, grow pale," from Old French fader "become weak, wilt, wither," from fade (adj.) "pale, weak; insipid, tasteless" (12c.), probably from Vulgar Latin *fatidus, which is said to be a blending of Latin fatuus "silly, tasteless" and vapidus "flat, flavorless." Related: Faded; fading. Of sounds, by 1819. Transitive sense from 1590s; in cinematography from 1918.

Adieu! adieu! thy plaintive anthem fades
  Past the near meadows, over the still stream,
    Up the hill-side; and now 'tis buried deep
      In the next valley-glades:
Was it a vision, or a waking dream?
  Fled is that music:" Do I wake or sleep?
[Keats, from "Ode to a Nightingale"]
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fusion (n.)

1550s, "act of melting by heat," from French fusion or directly from Latin fusionem (nominative fusio) "an outpouring, effusion," noun of action from fusus, past participle of fundere "to pour, melt" (from nasalized form of PIE root *gheu- "to pour"). Meaning "union or blending of different things; state of being united or blended" is by 1776; used especially in 19c, of politics, in early 20c. of psychology, atoms, and jazz (in nuclear physics sense, first recorded 1947; in musical sense, by 1972).

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confusion (n.)

c. 1300, confusioun, "overthrow, ruin," from Old French confusion "disorder, confusion, shame" (11c.) and directly from Latin confusionem (nominative confusio) "a mingling, mixing, blending; confusion, disorder," noun of action from past-participle stem of confundere "to pour together," also "to confuse" (see confound).

Meaning "act of mingling together two or more things or notions properly separate" is from mid-14c. Sense of "a putting to shame, perturbation of the mind" (a sort of mental "overthrow") is from c. 1400 in English, while that of "mental perplexity, state of having indistinct ideas" is from 1590s. Meaning "state of being mixed together," literally or figuratively, "a disorderly mingling" is from late 14c.

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