curry favor (v.) Look up curry favor at Dictionary.com
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. See curry (v.). Old French fauvel is from a Germanic source and ultimately related to fallow (adj.); the sense here is entangled with that of similar-sounding Old French favele "lying, deception," from Latin fabella, diminutive of fabula (see fable (n.)).