rap (v.2)youdaoicibaDictYouDict[rap 词源字典]
"talk informally, chat," 1929, popularized c. 1965 in Black English, possibly first in Caribbean English and from British slang meaning "say, utter" (1879), originally "to utter a sudden oath" (1540s), ultimately from rap (n.). As a noun in this sense from 1898. Meaning "to perform rap music" is recorded by 1979. Related: Rapped; rapping.[rap etymology, rap origin, 英语词源]
rapable (adj.)youdaoicibaDictYouDict
1972, from rape (v.) + -able.
rapacious (adj.)youdaoicibaDictYouDict
1650s, from Latin rapaci-, stem of rapax "grasping," itself from stem of rapere "to seize" (see rapacity) + -ous. Related: Rapaciously; rapaciousness.
rapacity (n.)youdaoicibaDictYouDict
1540s, from Middle French rapacité (16c.), from Latin rapacitatem (nominative rapacitas) "greediness," from rapax (genitive rapacis) "grasping, plundering," from rapere "seize" (see rapid).
rape (v.)youdaoicibaDictYouDict
late 14c., "seize prey; abduct, take by force," from rape (n.) and from Anglo-French raper (Old French rapir) "to seize, abduct," a legal term, probably from past participle of Latin rapere "seize, carry off by force, abduct" (see rapid).

Latin rapere was used for "sexually violate," but only very rarely; the usual Latin word being stuprare "to defile, ravish, violate," related to stuprum (n.), literally "disgrace." Meaning "to abduct (a woman), ravish;" also "seduce (a man)" is from early 15c. in English. Related: Raped; raping. Uncertain connection to Low German and Dutch rapen in the same sense.
rape (n.1)youdaoicibaDictYouDict
early 14c., "booty, prey;" mid-14c., "forceful seizure; plundering, robbery, extortion," from Anglo-French rap, rape, and directly from Latin rapere "seize" (see rape (v.)). Meaning "act of abducting a woman or sexually violating her or both" is from early 15c., but perhaps late 13c. in Anglo-Latin.
rape (n.2)youdaoicibaDictYouDict
kind of cruciferous plant (Brassica napus), late 14c., from Old French rape, from Latin rapa, rapum "turnip," from PIE *rap- (cognates: Greek hrapys "rape," Old Church Slavonic repa, Lithuanian rope, Middle Dutch roeve, Old High German ruoba, German Rübe "rape, turnip"). Usually grown to feed sheep, an oil made from it is used in cooking (see canola).
RaphaelyoudaoicibaDictYouDict
masc. proper name, Biblical archangel (Apocrypha), from Late Latin, from Greek Rhaphael, from Hebrew Repha'el, literally "God has healed," from rapha "he healed" + el "God." Raphaelesque (1832) is in reference to painter Raffaello Sanzio (1483-1520). See Pre-Raphaelite.
raphe (n.)youdaoicibaDictYouDict
"seam, suture" (medical), 1753, medical Latin, from Greek rhaphe "seam, suture (of a skull)," from rhaptein "to sew together, stitch" (see wrap).
rapid (adj.)youdaoicibaDictYouDict
1630s, "moving quickly," from French rapide (17c.) and directly from Latin rapidus "hasty, swift, rapid; snatching; fierce, impetuous," from rapere "hurry away, carry off, seize, plunder," from PIE root *rep- "to snatch" (cognates: Greek ereptomai "devour," harpazein "snatch away," Lithuanian raples "tongs"). Meaning "happening in a short time" is from 1780. Related: Rapidly; rapidness. Rapid-transit first attested 1852, in reference to street railways; rapid eye movement is from 1906.
rapidity (n.)youdaoicibaDictYouDict
1650s, from French rapidité and directly from Latin rapiditatem (nominative rapiditas) "swiftness, rapidity, velocity," from rapidus "hasty, swift, rapid" (see rapid).
rapids (n.)youdaoicibaDictYouDict
1765, from French rapides (see rapid); applied by French voyagers to rough, swift-flowing reaches in North American rivers.
rapier (n.)youdaoicibaDictYouDict
"light, sharp-pointed sword," 1550s, from Middle French rapière, from espee rapiere "long, pointed two-edged sword" (late 15c.), in which the adjective is of uncertain origin, perhaps from derisive use of raspiere "poker, scraper." Dutch, Danish rapier, German Rappier are from French.
rapine (n.)youdaoicibaDictYouDict
early 15c., "plunder," from Middle French rapine (12c.), from Latin rapina "act of robbery, plundering, pillage," from rapere "seize, carry off, rob" (see rapid).
rapist (n.)youdaoicibaDictYouDict
1883, agent noun from rape (v.).
rapparee (n.)youdaoicibaDictYouDict
"Irish freebooter," 1680s, originally "pikeman," from Irish rapairidhe, plural of rapaire "half-pike." Kind of soldier prominent in the war of 1688-92.
rappel (n.)youdaoicibaDictYouDict
1931, "mountaineering technique for descending steep faces," from French rappel, literally "recall" (Old French rapel), from rapeler "to recall, summon" (see repeal (v.)). The same word had been borrowed earlier (1848) to mean "a drum roll to summon soldiers."
rappel (v.)youdaoicibaDictYouDict
1957 in the mountaineering sense; see rappel (n.). Related: Rappeled; rappelling.
rapper (n.)youdaoicibaDictYouDict
agent noun meaning "one who raps" in any sense (see rap (v.)). Before the hip-hpo performance sense emerged c. 1979, it could mean "door-knocker" (1630s), "spirit-rapper" (1755), "professional perjurer" (1840), prison slang for "prosecutor" (1904), "itinerant antiques buyer," with a tinge of shadiness (1914). Rapster is from 1772.
rapping (n.)youdaoicibaDictYouDict
c. 1400, verbal noun from rap (v.1). Meaning "talking" is from 1969; meaning "rap music performance" is from 1979, from rap (v.2).