Etymologically

Etymology and origin of the Latin word sileo

Confidence
Probable
Formation
Inherited
First attested
c. 250–184 BC, Plautus
Inherited from
Proto-Italic *silē-
Ultimate origin
Proto-Indo-European (*sh₁i-ló-)

Pronunciation

  • Classical: [ˈsɪ.ɫe.oː][1]
  • Ecclesiastical: [ˈsiː.le.o][1]

Forms

sileō (present infinitive silēre, perfect active siluī); second conjugation, no supine stem, third person-only in the passive[1] Augustine has a perfect passive silitum est.[2]

Etymology

It is inherited from Proto-Italic *silē- (“to be quiet”), a stative verb beside an adjective *silo- (“quiet, silent”), inherited from Proto-Indo-European *sh₁i-ló- (“silent”).[3][4] Cognate with Gothic 𐌰𐌽𐌰𐍃𐌹𐌻𐌰𐌽 (anasilan, “to become quiet”) (of the wind dropping) and Old English sālnes (“silence”).[3][1] Walde–Hofmann and Ernout–Meillet thought the first meaning was “to come to rest”, and Walde–Hofmann and Pokorny linked it with sinō (“to let”).[3]

Earliest recorded meaning

The prologue of Plautus' Poenulus, quoting or parodying Ennius: silēte et tacēte atque animum advortite, “be silent, keep quiet and pay attention”.[4][3]

Semantic evolution

It is to make no sound, and is used of night and of still weather (Virgil's intempesta silet nox, “the dead of night is silent”).[4] Of people it is not to speak, or to say nothing in writing, and transitively to keep something quiet or pass it over in silence (Virgil: nor will I say nothing of you, young man).[4] It also means keeping silent under provocation, and, of things, being at rest or inactive.[4][1]

Döderlein distinguishes silēre, to be still as opposed to making noise, from taceō, to be silent as opposed to speaking.[5] Church Latin glosses it “be silent, hold one's peace”.[6]

Timeline

  • c. 250–184 BC – Plautus: silēte et tacēte.[4][7]
  • 81–43 BC – Cicero of keeping silent about politics.[4][7]
  • 70–19 BC – Virgil of the silent night.[4][7]

Meanings

Verb

  1. To make no sound, be silent, be still.[4][1][6]
  2. Not to speak; to keep silence.[4][6]
  3. (transitive) To say nothing of, pass over in silence; to keep secret.[4][1]
  4. To be at rest, be inactive.[1]

Word family

References

  1. ^ a b c d e f g h Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  3. ^ a b c d de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  4. ^ a b c d e f g h i j k Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  5. ^ Döderlein, Ludwig (1874), Döderlein’s Hand-book of Latin Synonymes, tr. H. H. Arnold, Andover: W. F. Draper
  6. ^ a b c Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  7. ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de

Related etymologies

  • opus · also from Proto-Indo-European
  • albus · also from Proto-Indo-European
  • potis · also from Proto-Indo-European
  • salvus · also from Proto-Indo-European
  • socius · also from Proto-Indo-European
  • signum · also from Proto-Indo-European
  • frater · also from Proto-Indo-European
  • foedus · also from Proto-Indo-European
Cite this entry

“Sileo.” Etymologically, 18 Oct. 2026, etymologically.com/la/sileo. Accessed 19 Oct. 2026.

Last edited on . ·