fornication (n.)youdaoicibaDictYouDict[fornication 词源字典]
c. 1300, from Old French fornicacion "fornication, lewdness; prostitution; idolatry" (12c.), from Late Latin fornicationem (nominative fornicatio), noun of action from past participle stem of fornicari "to fornicate," from Latin fornix (genitive fornicis) "brothel" (Juvenal, Horace), originally "arch, vaulted chamber, a vaulted opening, a covered way," probably an extension, based on appearance, from a source akin to fornus "brick oven of arched or domed shape" (see furnace). Strictly, "voluntary sex between an unmarried man and an unmarried woman;" extended in the Bible to adultery. The sense extension in Latin is perhaps because Roman prostitutes commonly solicited from under the arches of certain buildings.[fornication etymology, fornication origin, 英语词源]
louver (n.)youdaoicibaDictYouDict
also louvre, early 14c., "domed turret-like structure atop a building to disperse smoke and admit light," from Old French lovier, of uncertain origin. One theory connects it to Medieval Latin *lodarium, which might be from a Germanic source (compare Old High German louba "upper room, roof;" see lobby). Another suggests it is from French l'ouvert, literally "the open place," from le, definite article, + past participle of ouvrir "to open." Meaning "overlapping strips in a window (to let in air but keep out rain)" first recorded 1550s. The form has been influenced by apparently unrelated French Louvre, the name of the palace in Paris, which is said to be so named because its builder, Philip Augustus, intended it as a wolf kennel. Related: Louvered.
diapiryoudaoicibaDictYouDict
"A domed rock formation in which a core of rock has moved upward to pierce the overlying strata", Early 20th century: from Greek diapeirainein 'pierce through', from dia 'through' + peirainein (from peran 'pierce').
louvreyoudaoicibaDictYouDict
"Each of a set of angled slats fixed or hung at regular intervals in a door, shutter, or screen to allow air or light to pass through", Middle English (in sense 2): from Old French lover, lovier 'skylight', probably of Germanic origin and related to lodge. More The first sense recorded was to describe a domed structure on a roof with side openings for ventilation: louvre comes from Old French lover, lovier ‘skylight’, probably of Germanic origin and related to lodge ( see lobby).