"woman accompanying and guiding a younger, unmarried lady in public," 1720, from French chaperon "protector," especially "female companion to a young woman," earlier "head covering, hood" (c. 1400), from Old French chaperon "hood, cowl" (12c.), diminutive of chape "cape" (see cap (n.)). "... English writers often erroneously spell it chaperone, app. under the supposition that it requires a fem. termination" [OED]. The notion is of "covering" the socially vulnerable one. The word had been used in Middle English in the literal sense "hooded cloak."
"May I ask what is a chaperon?"
"A married lady; without whom no unmarried one can be seen in public. If the damsel be five and forty, she cannot appear without the matron; and if the matron be fifteen, it will do."
[Catharine Hutton, "The Welsh Mountaineer," London, 1817]
"Friar of the Order of St. Francis, under the rule of 1528," 1590s, from French capuchin (16c., Modern French capucin), from Italian capuccino, diminutive of capuccio "hood," augmentative of cappa (see cap (n.)). So called from the long, pointed hoods on their cloaks. As a type of South American monkey, 1785, from the shape of the hair on its head, which was thought to resemble a cowl.
1570s, "cloth spread over a saddle," also "personal dress and ornaments," from French caparasson (15c., Modern French caparaçon), from Spanish caparazón, perhaps from augmentative of Old Provençal caparasso "a mantle with a hood," or Medieval Latin caparo, the name of a type of cape worn by women, literally "chaperon" (see chaperon (n.)). Past participle adjective caparisoned is attested from c. 1600, from a verb caparison (1590s), from French caparaçonner, from caparaçon.
late 13c., "close-fitting cap," from Old French coife "skull-cap, cap worn under a helmet, headgear" (12c., Modern French coiffe), from Late Latin coifa "a cap, hood" (source of Italian cuffia, Spanish cofia, escofia), of West Germanic origin (compare Old High German kupphia, Middle High German kupfe "cap"). As "light cap of lace worn by women," mid-15c.
Prussian spiked helmet, 1875, from German Pickelhaube, from pickel "(ice)pick, pickaxe" + haube "hood, bonnet." But the German word is attested 17c., long before the helmet type came into use, and originally meant simply "helmet;" Palmer ("Folk-Etymology") reports a German theory (Andresen) that it is a folk-etymology formation: "as if from Pickel and haube, a cap or coif[;] more correctly written Biekelhaube, [it] is for Beckelhaube, a word most probably derived from becken, a basin."
traditional English dance of persons in costume, mid-15c., moreys daunce "Moorish dance," from Flemish mooriske dans, from Old French morois "Moorish, Arab, black," from More "Moor" (see Moor). It is unknown why the English dance (which typically is based on the Robin Hood stories) was called this, unless it is in reference to fantastic dancing or costumes (compare Italian Moresco, a related dance, literally "Moorish;" German moriskentanz, French moresque).
1902, "enclosed automobile with open driver's seat," from French limousine, from Limousin, region in central France (see Limousine). The automobile meaning is from a perceived similarity of the car's profile to a type of hood worn by the inhabitants of that province. Since 1930s, it has been synonymous in American English with "luxury car." The word was applied from 1959 to vehicles that take people to and from large airports. Limousine liberal first attested 1969 (in reference to New York City Mayor John Lindsay).