Etymology and origin of the Latin word protrudo
- Confidence
- Established
- Formation
- Derivation
- First attested
- 96–55 BC, Lucretius
- Ultimate origin
- Proto-Indo-European *treud-
From the same root
Forms
prōtrūdō (present infinitive prōtrūdere, perfect active prōtrūsī, supine prōtrūsum); third conjugation[1]
Etymology
It is from Latin prō- (“forward”) + trūdō (“to thrust”).[2][3][1] trūdō goes back to Proto-Italic *treude/o- and Proto-Indo-European *treud- (“to push, thrust”).[4] De Vaan compares Welsh cythrudd (“to vex”), Lithuanian triū̃sas (“work, effort”) and Old Norse þrjóta (“to lack”).[4]
Earliest recorded meaning
Lewis and Short quote a line of the comic poet Afranius about someone thrust out of the house, but the TLL marks that reading as doubtful.[5][3] Lucretius uses it of the body being pushed forward,[2][6] and Cicero of someone who pushes a cylinder and so gives it the beginning of its motion.[2][5]
Semantic evolution
Its first sense is to push forward:[2][5] Horace has a man who pushed his donkey onto the rocks, Vitruvius stones that do not push the work outward, and Gellius south winds that drive the waves on.[2][6] It also meant to thrust out: Phaedrus has someone thrown out of doors head first, and Ammianus someone thrust out of doors.[2][6][5] Cicero uses it of time, of putting off elections to January.[2][5]
English protrude comes from it; it is recorded from the 1610s, first in the sense to thrust forward.[7]
Timeline
- 96–55 BC – Lucretius uses it of the body being pushed forward.[2][8]
- 81–43 BC – Cicero uses it of pushing a cylinder and of putting off elections.[2][8]
- c. 15 BC–c. 50 AD – Phaedrus uses it of someone thrown out of doors.[2][8]
- c. 390 AD – Ammianus uses it of being thrust out of doors.[5][8]
- 1610s – English borrows protrude.[7]
Meanings
Verb
- To push or thrust forward.[2][5]
- To thrust or drive out, expel.[2][6]
- (of time) To put off, postpone.[2][5]
Related words
References
- ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h i j k l m Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
- ^ a b de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
- ^ a b c d e f g h Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ a b c d Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
- ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
- ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Cite this entry
“Protrudo.” Etymologically, 20 Oct. 2026, etymologically.com/la/protrudo. Accessed 22 Oct. 2026.
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