Etymologically

introitus

Etymology and origin of the Latin word introitus

Confidence
Established
Formation
Derivation
First attested
81–43 BC, Cicero
Ultimate origin
Proto-Indo-European (*h₁ey-)
Etymology tree
inherited borrowed derived
Latin intro
French entrer
French rentrer
Latin introfero
Latin introeo
Latin introitus

Pronunciation

  • Classical: [ɪnˈtro.ɪ.tʊs], [ɪnˈtro.ɪ.tuːs][1]
  • Ecclesiastical: [inˈtrɔː.i.tus], [inˈtrɔː.i.tus][1]

Forms

introitus m (genitive introitūs); fourth declension[1] Inscriptions have an ablative singular introitō and plural introitīs.[2]

Etymology

It is from Latin introeō (“to go in”) + -tus.[2][1][3] The verb is formed from intrō (“inside”) and eō (“to go”), which goes back to Proto-Indo-European *h₁ey- (“to go”).[4]

Earliest recorded meaning

Köbler's first source is Cicero,[5] who distinguishes keeping a man from entering a place and keeping him from approaching it at all.[2]

Semantic evolution

It is a going in, an entrance, and in Cicero also a hostile entry, as Marcellus' entry into Syracuse.[2] It is also a means or right of entry, a way in or entrance, and in geography the mouth of a river or harbour.[2][6] Pliny the Younger uses it of entry into a council and the fee paid for it.[2] Figuratively it is a beginning or introduction, as Cicero's opening of a defence.[2][6]

In Church Latin it is the introit, the chant sung as the priest approaches the altar.[7][1][8] Medieval texts also use it of entry into an office, of a relief paid to a lord, of an import duty and of revenue.[7]

Timeline

  • 81–43 BC – Cicero of entering and of the opening of a speech.[2][5]
  • c. 50 BC – Caesar of soldiers entering a town.[6][5]
  • Middle Ages – The introit of the Mass; entry into an office.[7]
  • late 15th century – Borrowed into English as introit, through Old French.[8]

Meanings

Noun

  1. A going in, entrance; a hostile entry.[2][6][1]
  2. A means or right of entry; a way in; the mouth of a river or harbour.[2][6][1]
  3. Entry into a body or office; an entrance fee.[2][1][7]
  4. A beginning, introduction.[2][6][1]
  5. (Ecclesiastical Latin) The introit.[7][1]
  6. (Medieval Latin) A relief paid to a lord; an import duty; revenue.[7]

References

  1. ^ a b c d e f g h i j Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  5. ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ a b c d e f Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  7. ^ a b c d e f Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  8. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
Cite this entry

“Introitus.” Etymologically, 19 Oct. 2026, etymologically.com/la/introitus. Accessed 20 Oct. 2026.

Last edited on . ·