LATIN DICTIONARYLexicon Latīnum
adjectivefirst/second-declension adjective

rapidus

rapidus (feminine rapida, neuter rapidum, comparative rapidior, superlative rapidissimus, adverb rapidē)
Classical[ˈra.pɪ.dʊs]Ecclesiastical[ˈraː.pi.dus]
Mille Verba core vocabulary

Meaning

  1. adjectivemoving so violently as to seize and carry along anything in its path
  2. adjectivefigurativelyheadlong, rapid
  3. adjectivefigurativelyswift in action, rapid
  4. adjectivefigurativelyviolently quick, swift, rapid (esp. of animals such as horses, raptors)
    rapida et celeritāte caecāta ōrātiōa speech violently rapid and blinded by its speed46 BCE, Cicero, Brutus 264
  5. adjectiveviolent, fierce
  6. adjectivescorching, fiery, blazing, white-hot, consuming
    “Ipsa Iovis rapidum iaculāta ē nūbibus ignem,“[Pallas] by herself had hurled Jove’s consuming fire from the clouds: [she] both destroyed the ships and upturned the level seas with gales.” (Juno, speaking in soliloquy, envies the ability of Pallas/Athena/Minerva to use Jupiter’s lightning.)29 BCE – 19 BCE, Vergilius, Aeneis 1.42–43

Latīnē defined in Latin in our graded readers

celerrimus, quī rapit; flūmen rapidum.
rapidus -a -um — in Mille Verba, ch. Via et Iter

Declension

singular
formmasculinefeminineneuter
nominativerapidusrapidarapidum
genitiverapidīrapidaerapidī
dativerapidōrapidaerapidō
accusativerapidumrapidamrapidum
ablativerapidōrapidārapidō
vocativerapiderapidarapidum
plural
formmasculinefeminineneuter
nominativerapidīrapidaerapida
genitiverapidōrumrapidārumrapidōrum
dativerapidīsrapidīsrapidīs
accusativerapidōsrapidāsrapida
ablativerapidīsrapidīsrapidīs
vocativerapidīrapidaerapida

răpĭdus, a, um, adj. rapio,
I. tearing away, seizing.
I. Lit. (very rare, and only poet.): ferae, Ov. H. 10, 96; 11, 111 (but in Lucr. 4, 712, the correct read. is rabidi leones).—Of hunting-dogs: agmen, a tearing, fierce pack, Ov. M. 3, 242; cf. Lucr. 5, 890. —Of fierce, consuming heat: aestus, Verg. E. 2, 10: sol, id. G. 1, 92: Sirius, id. ib. 4, 425: flamma, Ov. M. 2, 123: ignis, Verg. G. 4, 263; Ov. M. 7, 326; 8, 225; 12, 274.— Of a consuming pyre, Ov. Tr. 1, 7, 20.—As epithet of the sea (qs. devouring), Tib. 1, 2, 40 (al. rabidus).—
II. Transf., tearing or hurrying along, swift, quick, rapid (the predom. and class. signif.; esp. freq. in the poets).
1. Of waters: fluvius, Plaut. Bacch. 1, 1, 52; id. Men. prol. 64 sq.: torrens, Verg. A. 2, 305: amnis, Hor. S. 1, 10, 62; Lucr. 1, 14: flumen, Caes. B. C. 1, 50; Hor. S. 2, 3, 242; Tib. 1, 2, 44 Huschk. N. cr.; Quint. 6, 2, 6 al.; cf.: lapsus fluminum (along with celeres venti), Hor. C. 1, 12, 9: Tigris, id. ib. 4, 14, 46: procellae, Prop. 2, 16 (3, 8), 45: undae (as a mere epitheton ornans), Ov. M. 7, 6.— Sup.: flumen, Caes. B. C. 1, 50 fin.—
2. Of other hurrying, rapidly moving things: turbo, Lucr. 6, 668; cf. venti, Verg. A. 6, 75: Notus, Hor. C. 1, 28, 21: ignis Jovis, Verg. A. 1, 42: sol, Hor. C. 2, 9, 12; cf.: axis (solis), Ov. F. 3, 518: orbis, id. M. 2, 73; and: caelum, Stat. Th. 1, 197: equi, Ov. F. 5, 592; cf.: volucris rapidissima, id. M. 2, 716: manus, Verg. A. 8, 442: currus, id. ib. 12, 478; cf. cursus, id. ib. 12, 683: agmen, Tac. H. 2, 30; cf. Verg. A. 11, 906: bella, Claud. Cons. Stil. 1, 188: impetus, Flor. 4, 7, 12: venenum, i. e. quickworking, Tac. A. 12, 67; so, virus, id. ib. 13, 15 fin.: pestis, Sil. 7, 351: vires, id. 4, 678. —
B. Trop., hurried, impetuous, vehement, hasty: oratio, Cic. Fin. 2, 1, 3: rapidus in consiliis, over-hasty, precipitate, Liv. 22, 12 fin.: rapidus proelia miscet, Sil. 1, 266: rapidus in urbem vectus, Tac. H. 2, 54.— Hence, adv.: răpĭdē, acc. to II., hurriedly, hastily, quickly, rapidly: dilapsus (fluvius), Cic. Leg. 2, 3, 6: iter confecit (along with festinanter), Suet. Calig. 43.—Comp.: eo rapidius ... venit Rigodulum, Tac. H. 4, 71.—Trop.: quod (παθητικόν) cum rapide fertur, sustineri nullo pacto potest, Cic. Or. 37, 128.

Origins

From rapiō (“snatch”) + -idus. For the semantic development, compare Irish sciobtha (“quick”) from Irish sciob (“to snatch”).

Later borrowings
  • Catalanràpid
  • Englishrapid
  • Frenchrapide
  • Germanrapid
  • Italianrapido
  • Portugueserápido
  • Romanianrapid
  • Spanishrápido
  • Asturianrápidu
  • Galicianrápido
Ibero-Romance
  • Spanishraudofrom Old Spanish rabdo
  • Spanishrabiónfrom Old Spanish rabdo
  • Galicianroudo
Insular Romance
  • Sardinianrattu
Balkan Romance
  • Romanianrepede
  • Aromanianareapit
Italo-Dalmatian
  • Italianratto
  • Istriotrato
  • Venetanrata
Southern Gallo-Romance
  • Catalanrabde
  • Auvergnatraide
  • Languedocienraide
Gallo-Italic
  • Emilianrata
  • Lombardrat
  • Lombardrata
  • Romagnolrata
Northern Gallo-Romance
  • Bourguignonreffrom Old French rade
  • Middle Frenchradefrom Old French rade
Ancient borrowings
  • Albanianrepëtë

In English words that came into English from rapidus

  • rapidrapidus
  • rapidityrapiditas

Quick answers

What does rapidus mean in Latin?
rapidus, a adjective, means “moving so violently as to seize and carry along anything in its path; violently quick, swift, rapid (esp. of animals such as horses, raptors); violent, fierce”.
How do you pronounce rapidus?
In classical Latin, [ˈra.pɪ.dʊs]; in ecclesiastical (church) Latin, [ˈraː.pi.dus].