fallowyoudaoicibaDictYouDict[fallow 词源字典]
fallow: English has two words fallow, both of considerable antiquity. Fallow ‘uncultivated’ [OE] originally meant ‘ploughed land’. Its present-day adjectival meaning ‘ploughed but not sown’ or, more broadly, just ‘uncultivated’, developed in the 15th century. Fallow ‘pale yellowish-brown’ [OE] (now used only in fallow deer) comes via Germanic *falwaz from Indo- European *polwos, a derivative of the base *pol-, *pel-, which also produced English appal [14] (originally ‘grow pale’), pale, and pallid.

Its Germanic relatives include German fahl ‘pale, fawn’ and falb ‘pale yellow’. (Germanic *falwaz, incidentally, was the ancestor of French fauve ‘wild animal’, source of the term fauvism [20] applied to an early 20th-century European art movement that favoured simplified forms and bold colours.)
=> appal, pale, pallid[fallow etymology, fallow origin, 英语词源]
curry favoryoudaoicibaDictYouDict
verbal phrase, early 16c., altered by folk etymology from curry favel (c. 1400) from Old French correier fauvel "to be false, hypocritical," literally "to curry the chestnut horse," which in medieval French allegories was a symbol of cunning and deceit. For the verb, see curry (v.). Old French fauvel (later fauveau) "fallow, dun," though the exact color intended in the early uses is vague, is a diminutive of fauve fawn-colored horse, dark-colored thing, dull," for which see Fauvist. The secondary sense here is entangled with similar-sounding Old French favele "lying, deception," from Latin fabella, diminutive of fabula (see fable (n.)). In Middle English, favel was a common name for a horse.
FauvistyoudaoicibaDictYouDict
movement in painting associated with Henri Matisse, 1915, from French fauve, "wild beast," a term applied in contempt to these painters by French art critic Louis Vauxcelles at Autumn Salon of 1905. The movement was a reaction against impressionism, featuring vivid use of colors. French fauve (12c.) in Old French meant "fawn-colored horse, dark-colored thing, dull," and is from Frankish *falw- or some other Germanic source, cognate with German falb "dun, pale yellowish-brown" and English fallow "brownish-yellow." Related: Fauvism (1912).