Etymology and origin of the Latin word deiectus
deiectus1 downcast; low-lying
- Confidence
- Established
- Formation
- Derivation
- First attested
- c. 50 BC, Caesar
- Ultimate origin
- Proto-Indo-European (*(H)ieh1-)
Pronunciation
Forms
dēiectus (feminine dēiecta, neuter dēiectum); first/second-declension adjective[2]
Etymology
Used as an adjective, it is the past participle from Latin dēiciō (“to throw down”).[2][3] dēiciō is dē- (“down”) with iaciō (“to throw”),[2] which de Vaan traces to Proto-Italic *jak-i- (“to throw”) and the aorist stem Proto-Indo-European *(H)ieh1- (“to throw, let go”).[4] Cognate with Ancient Greek ἵημι (híēmi, “to send, let go, throw”).[4]
Earliest recorded meaning
Köbler dates it from Caesar,[5] who in the Civil War has troops standing on low-lying ground: deiectis atque inferioribus locis.[2]
Semantic evolution
Of things it means hanging down, as Columella's dog with drooping ears, or low-lying, as places in Caesar and a region in Manilius.[2] Of people it is downcast or dismayed, from Virgil on;[2] Seneca has a figure weary, downcast and heavy with weeping, and Apuleius men cast down like frightened women.[2] Quintilian uses it of a subdued style in perorations, and Apuleius of a humble, low-grade office.[2]
Timeline
- c. 50 BC – Caesar, of low-lying ground.[2][5]
- 70–19 BC – Virgil, of dismay.[2][5]
- 1st century AD – Columella, of a dog's drooping ears.[2][5]
- c. 125–175 AD – Apuleius, of a humble office.[2][5]
Meanings
Adjective
deiectus2 throwing down; slope
- Confidence
- Established
- Formation
- Derivation
- First attested
- c. 50 BC, Caesar
- Ultimate origin
- Latin (dēiciō)
Pronunciation
Forms
dēiectus m (genitive dēiectūs); fourth declension[1]
Etymology
The noun is from Latin dēiciō (“to throw down”) + -tus.[2][6][5]
Earliest recorded meaning
The TLL and Köbler record it from Caesar,[6][5] who in the Gallic War describes a hill with a slope on either side: ex utraque parte lateris deiectus habebat.[2]
Semantic evolution
Lewis & Short call it rare and note that Cicero does not use it.[3] Besides a slope it is the act of throwing or falling down, above all of water: Ovid has the heavy fall of the Peneus, Vitruvius the fall of rainwater into the compluvium, and Seneca the fall of a stream.[2] Livy uses it of felled trees blocking a pass,[2] and Statius, by metonymy, of a lynx skin thrown so as to hang down.[2]
Timeline
- c. 50 BC – Caesar, of the slope of a hill.[2][6][5]
- 59 BC–17 AD – Livy, of felled trees.[2][5]
- 43 BC–18 AD – Ovid, of the fall of a river.[2][5]
Meanings
Noun
Related words
References
- ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h i j k l m n o p q r s t u v w x y z 27 28 Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b c d Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ 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 i j Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ a b c d Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
Cite this entry
“Deiectus.” Etymologically, 20 Oct. 2026, etymologically.com/la/deiectus. Accessed 20 Oct. 2026.
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