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feud: feud: [13] Feud signifies etymologically the ‘condition of being a foe’. It was borrowed from Old French fede or feide, and originally meant simply ‘hostility’; the modern sense ‘vendetta’ did not develop until the 15th century. The Old French word in turn was a borrowing from Old High German fēhida. This was a descendant of a prehistoric Germanic *faikhithō, a compound based on *faikh- ‘hostility’ (whence English foe).

Old English had a parallel descendant, fāhthu ‘enmity’, which appears to have died out before the Middle English period. It is not clear how the original Middle English form fede turned into modern English feud (the first signs of which began to appear in the late 16th century).
=> foe
feudal: feudal: see fee
chauffeur (n.): 1896, originally "a motorist," from French chauffeur, literally "stoker," operator of a steam engine, French nickname for early motorists, from chauffer "to heat," from Old French chaufer "to heat, warm up; to become hot" (see chafe). The first motor-cars were steam-driven. Sense of "professional or paid driver of a private motor car" is from 1902.
The '95 Duryea wagon, which won the Chicago contest Fall, was exhibited at the Detroit Horse Show last week. Charles B. King, treasurer of the American Motor League, acted as "chauffeur," as the French say. ["The Horseless Age," April 1896]
chauffeur (v.): 1902, from chauffeur (n.). Related: Chauffeured; chauffeuring.
coiffeur (n.): 1847, from French coiffeur "hairdresser," from coiffer "to dress hair," from Old French coife, originally, "inner part of the helmet" (see coif (n.)). A woman hairdresser would be properly a coiffeuse.
feu de joie (n.): public bonfire, French, literally "fire of joy."
feud (n.): c. 1300, fede "enmity, hatred, hostility," northern English and Scottish, ultimately (via an unrecorded Old English word or Old French fede, faide "war, raid, hostility, hatred, enmity, feud, (legal) vengeance," which is from Germanic) from Proto-Germanic *faihitho (compare Old High German fehida "contention, quarrel, feud"), noun of state from adjective *faiho- (cognates: Old English fæhð "enmity," fah "hostile;" German Fehde "feud;" Old Frisian feithe "enmity").

This is from PIE root *peig- (2), also *peik- "evil-minded, hostile" (see foe). Sense of "vendetta" is early 15c. Alteration of spelling in 16c. is unexplained. Meaning "state of hostility between families or clans" is from 1580s.
feud (v.): 1670s, from feud (n.). Related: Feuded; feuding.
feudal (adj.): 1610s, "pertaining to feuds," estates of land granted by a superior on condition of services to be rendered to the grantor, from Medieval Latin feudalis, from feudum "feudal estate, land granted to be held as a benefice," of Germanic origin (cognates: Gothic faihu "property," Old High German fihu "cattle;" see fee). Related to Middle English feodary "one who holds lands of an overlord in exchange for service" (late 14c.). Not related to feud.
feudalism (n.): a coinage of historians, attested from 1773; see feudal + -ism. Feudal system attested from 1736.
feuillemorte (adj.): "of the color of a dead leaf," 1640s, fieulamort, from French feuille morte, literally "dead leaf" (see folio + mortal (adj.)). A word of loose spelling, variants include phyllamort, filemot, philomot.
feuilleton (n.): part of a French newspaper devoted to light literature and criticism (usually at the bottom of a page and separated by a rule), 1845, from French feuilleton (18c.), literally "a leaflet (added to a newspaper)," diminutive of feuille "leaf," from Latin folium (see folio).
Esp. applied in F. to the short story or serial with which newspapers filled up after the fall of Napoleon left them short of war news. This was the beginning of Dumas' and Eugène Sue's long novels. [Weekley]
In reference to writing style, suggestive of showiness and superficiality.