Etymologically

Etymology and origin of the Latin word pedis

Confidence
Probable
Formation
Inherited
First attested
280–200 BC Livius Andronicus More words from the 3rd century BC
Inherited from
Proto-Italic *pezd-
Ultimate origin
Proto-Indo-European *pesd-
Derivations

Pronunciation

  • Classical: [ˈpeː.dɪs][1]
  • Ecclesiastical: [ˈpɛː.dis][1]

Forms

pēdis m (genitive pēdis); third declension[1]

Etymology

It is inherited from Proto-Italic *pezd-, inherited from Proto-Indo-European *pesd- (“annoying insect”).[2] De Vaan sees its closest relatives in Indo-Iranian: Avestan pazdu- (“beetle, maggot”) and Sanskrit पैद्व (paidvá-, “an insect harming horses”).[2] The derivative pēdicōsus “lousy” points to an older base ⟨*pēdi/ek-⟩, so that pēdis may be a remodelling of an earlier ⟨*pēdex⟩.[2][1] He finds the explanation as ⟨*pe-h₁ed-i-⟩ “the one that eats away”, proposed by Weiss and Neri, vague and unconvincing.[2]

The OLD reconstructs ⟨*pezdis⟩ and connects it with pedo2 (“to fart”),[3] and the TLL reports Ernout's suggestion that the louse was named from the crackling sound it makes when it is killed.[4] Köbler likewise sets it under *pezd- (“to fart”).[5][6]

Earliest recorded meaning

Its first record is a line of Livius Andronicus' comedies, “fleas or bugs or lice?” (pulicesne an cimices an pedes?),[4][2][5] where it means a louse.[4]

Semantic evolution

It was a word of comedy and of plain speech: Plautus lists lice with flies, gnats, bugs and fleas,[4] Lucilius has a man picking lice,[4] and Varro advises clearing them from the heads and necks of chickens.[4][7] It is masculine in Novius and feminine in a fragment of Plautus.[4]

The diminutive pēdiculus gradually replaced it;[4] the grammarian Nonius already glosses pedis as what “we call pediculus”.[4]

Timeline

  • 280/260–before 200 BC – Livius Andronicus names lice beside fleas and bugs.[4][5]
  • c. 250–184 BC – Plautus lists them among pests.[4][7]
  • c. 180–102 BC – Lucilius has a man pick lice from his head.[4]
  • 1st century BC – Novius uses it, perhaps of a nasal polyp.[3][5]
  • 116–27 BC – Varro advises picking the lice from chickens.[4][7]

Meanings

Noun

  1. A louse.[3][7][8]
  2. (perhaps) A polyp in the nose.[3]

Word family

Usage notes

The same spelling is also the genitive singular pĕdis of pēs “foot”, with a short e.[9][4]

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  3. ^ a b c d Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  4. ^ a b c d e f g h i j k l m n Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  5. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ Pokorny, Julius (1959), Indogermanisches etymologisches Wörterbuch, Bern; Munich: Francke
  7. ^ a b c d Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  8. ^ Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  9. ^ Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.

Related etymologies

  • -icus · also from Proto-Indo-European
  • -ivus · also from Proto-Indo-European
  • -osus · also from Proto-Indo-European
  • -ius · also from Proto-Indo-European
  • -culum · also from Proto-Indo-European
  • -men · also from Proto-Indo-European
  • -or · also from Proto-Indo-European
  • -io · also from Proto-Indo-European
Cite this entry

“Pedis.” Etymologically, 13 Nov. 2026, etymologically.com/la/pedis. Accessed 14 Nov. 2026.

Last edited on . ·