Etymology
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mode (n.1)

"manner;" late 14c., "melodies, strains of music" (a sense now obsolete; see musical senses below), from Old French mode and directly from Latin modus "measure, extent, quantity; proper measure, rhythm, song; a way, manner, fashion, style" (in Late Latin also "mood" in grammar and logic), from PIE root *med- "take appropriate measures."

Meaning "manner of acting or doing, was in which a thing is done" is by 1660s. Sense of "inflectional category in conjugation" is mid-15c. In music, 1670s as "method of dividing the intervals of the octave for melodic purposes" in reference to ancient Greek music; by 1721 in reference to modern music.

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mode (n.2)

"current fashion, prevailing style," 1640s, from French mode "manner, fashion, style" (15c.), a specialized use of the French word that also yielded mode (n.1).

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a la mode (adv.)

also alamode, 1640s, from French à la mode (15c.), literally "in the (prevailing) fashion" (see a la + mode (n.2)). In 17c., sometimes nativized as all-a-mode. Cookery sense in reference to a dessert served with ice cream is 1903, American English; earlier it was used of a kind of beef stew or soup (1753).

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mody (adj.)

"fashionable," 1701, from mode (n.2) + -y (2).

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modist (n.)

"follower of fashion," by 1830, from mode (n.2) + -ist.

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outmoded (adj.)

"no longer in fashion, out-of-date," 1894, from out- + mode (q.v.); perhaps formed on model of French démoder.

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modish (adj.)

"fashionable, stylish," often with a hint of contempt, 1650s, from mode (n.2) + -ish. "Very common in 17-18 c.; now somewhat arch[aic]." [OED]. Related: Modishly; modishness.

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multimodal (adj.)

also multi-modal, "having several modes," 1899, from multi- + mode (n.1) + -al. Related: Multimodality.

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mood (n.2)

"grammatical form indicating the function of a verb," 1570s, an alteration of mode (n.1). The grammatical and musical (1590s) usages of it influenced the meaning of mood (n.1) in such phrases as light-hearted mood, but it is worth remembering that the two moods have no etymological relationship. Also used in traditional logic (1560s) as a variant of mode.

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Quasimodo (n.)

"Low Sunday," 1706, Quasimodo Sunday, from Latin quasi modo, first words of introit for the first Sunday after Easter: quasi modo geniti infantes "as newborn babes" (1 Peter ii.2). The hunchback in Hugo's novel was abandoned as an infant at Notre Dame on this day, hence his name. For first element, see quasi; for second, see mode (n.1).

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