Etymologically
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detective

This is the current revision of this entry, as edited by bogdan on 21 October 2026 at 20:18. This address is a permanent link to this version.
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Pronunciation

  • /deˈtɛk.tiv/[1]

Forms

detective m or f by sense (invariable)[1]

Etymology

It is borrowed from English detective, recorded in English in 1856 and shortened from the phrase “detective policeman”, a policeman who finds things out.[2][3][4][5] The English adjective is from detect (“to discover”), from Latin dētegō (“to uncover, reveal”) (past participle dētēctus), formed from dē- and tegō (“to cover”).[2][6][7] The Latin verb goes back to Proto-Indo-European *(s)teg- (“to cover with a roof”).[1] The noun later also came to mean the private investigator (“private detective”).[4]

DEI says the word came into fashion with detective novels, and passed into French as well (1871).[8] DELI thinks it more likely that it spread through the crime reports of newspapers, since at the end of the 19th century detective novels were not yet in vogue in Italy.[2]

Earliest recorded meaning

DELI's first record is in the Jesuit review La Civiltà Cattolica of 1891, for a private investigator or police detective.[2][3] Sabatini–Coletti dates the word to 1864.[9] An early Hoepli encyclopedia defines it as a man of the secret police.[5]

Semantic evolution

The word has kept its meaning, an investigator, usually a private one.[3][10][9] With the success of crime fiction the phrase detective story “crime novel” was also borrowed, beside the native romanzo giallo.[10][7]

Timeline

  • 1856 – English detective is recorded.[2][3]
  • 1864 – Sabatini–Coletti's date for Italian detective.[9]
  • 1871 – French détective is recorded.[8]
  • 1891 – La Civiltà Cattolica uses detective.[2][3]

Meanings

Noun

  1. A detective, an investigator, especially a private one: Ha assunto un detective per far seguire il socio.[3][10][11][1]

Word family

  • detectivistico

Usage notes

The word is masculine and feminine and usually invariable, though the English plural detectives is also used.[10][11][9] It is pronounced /deˈtɛktiv/ in Italian, beside the English pronunciation.[10][4][11]

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f Cortelazzo, Manlio; Zolli, Paolo (1999), Dizionario etimologico della lingua italiana, 2nd ed. by Manlio Cortelazzo and Michele A. Cortelazzo, Bologna: Zanichelli
  3. ^ a b c d e f De Mauro, Tullio (ed.) (2003), Grande dizionario italiano dell'uso, CD-ROM version 2.0, Torino: UTET
  4. ^ a b c Zingarelli, Nicola (2009), Lo Zingarelli 2010: vocabolario della lingua italiana, Bologna: Zanichelli
  5. ^ a b Battaglia, Salvatore; Bàrberi Squarotti, Giorgio (1961–2002), Grande dizionario della lingua italiana, 21 vols., Torino: UTET; digital ed. Accademia della Crusca
  6. ^ Nocentini, Alberto; Parenti, Alessandro (2010), l'Etimologico: vocabolario della lingua italiana, Firenze: Le Monnier
  7. ^ a b Gabrielli, Aldo (2020), Grande dizionario italiano, digital ed., Milano: Hoepli
  8. ^ a b Battisti, Carlo; Alessio, Giovanni (1950–1957), Dizionario etimologico italiano, 5 vols., Firenze: Barbèra (reprint 1975), p. 1266
  9. ^ a b c d Sabatini, Francesco; Coletti, Vittorio; Manfredini, Manuela (2026), Dizionario italiano Sabatini Coletti, digital ed., Milano: Sansoni / Rizzoli Larousse
  10. ^ a b c d e Devoto, Giacomo; Oli, Gian Carlo; Serianni, Luca; Trifone, Maurizio (2026), Nuovo Devoto–Oli: il vocabolario dell'italiano contemporaneo, digital ed., Milano: Le Monnier
  11. ^ a b c Vocabolario della lingua italiana Treccani (2011), Roma: Istituto della Enciclopedia Italiana