Etymology and origin of the Latin word secus
secus1 sex
- Confidence
- Uncertain
- First attested
- c. 100 BC, Sempronius Asellio
Forms
secus n (indeclinable)[1] It is found only in the nominative and accusative.[2]
Etymology
The noun is related to sexus (“sex”), of which it seems the older formation, although the older texts have only ⟨sexus⟩.[2][3][1] De Vaan considers a link with secō (“to cut”), as “a division”, but finds the formation unclear.[3]
Earliest recorded meaning
Sempronius Asellio, Histories: eum quem virīle secus tum in eō tempore habēbat, of the male sex he then had.[2][4]
Semantic evolution
It is one sex, or its members as a group, mostly in apposition after a noun of number, like id genus: virīle ac muliebre secus, “of the male and female sex”, in Sisenna, Sallust, Livy and Tacitus.[2] Livy counts about ten thousand free persons of the male sex taken at New Carthage.[2]
Timeline
- c. 100 BC – Sempronius Asellio.[2][4]
- 120–67 BC – Sisenna of men and women on a wall.[2][4]
- 59 BC–17 AD – Livy of captives of the male sex.[2][4]
- 98–115 AD – Tacitus of besieged of both sexes.[2][4]
Meanings
Noun
secus2 otherwise
- Confidence
- Disputed
- Formation
- Inherited
- First attested
- 280/260–before 200 BC, Livius Andronicus
- Inherited from
- Proto-Italic *sekʷos
- Ultimate origin
- Proto-Indo-European (*se-ḱwo-)
Pronunciation
Forms
secus (comparative sequius, no superlative)[1]
Etymology
The adverb has two explanations.[3][1] The older one, followed by the OLD, takes it from the root of sequor (“to follow”), as an old participle “following”, so “later, less well”.[3][2][1] In the view of Klingenschmitt, which de Vaan follows, it is inherited from Proto-Italic *sekʷos (“separate”), from Proto-Indo-European *se-ḱwo- (“by itself, separate”), with the prefix sē- (“apart”) and a suffix as in Sanskrit विश्व (víśva, “all”); this fits its cognates Old Irish sech (“past; without”) and Welsh heb (“without”), which a sense “following” does not explain.[3]
Earliest recorded meaning
De Vaan gives Livius Andronicus, Naevius and Plautus as its first authors.[3] In Plautus' Captivi a man says hoc sī secus reperiēs, “if you find this otherwise”.[2]
Semantic evolution
It means “otherwise, differently”, often implying “badly”: Cato tells his hearers to see how differently he acted.[2] Haud secus, “just so”, resumes after a simile, as Virgil's Arruns slinks off like a wolf, and nōn secus ac or quam is “not otherwise than”: Cicero did not speak otherwise than he felt.[2] It also means “amiss, contrary to what was wished” (Cicero: even if things turned out badly), and paulō secus “not far off”.[2] Its comparative is sequius, “less well, differently”.[3][1] In inscriptions it is a preposition, “beside, along” and “in accordance with”, and Charisius reports a sense “after”.[2]
Church Latin glosses it “otherwise, not so, differently, later”, and rarely as a preposition “by, beside, along, near”.[5] Medieval Latin uses the preposition for “along, near, beside” and “in accordance with”.[6]
Timeline
- 280/260–before 200 BC – Livius Andronicus.[3][4]
- c. 250–184 BC – Plautus in the sense “otherwise”.[2][4]
- 234–149 BC – Cato of acting differently.[2][4]
- 81–43 BC – Cicero of things turning out badly.[2][4]
- 70–19 BC – Virgil: haud secus.[2][4]
Meanings
Adverb
- Otherwise, differently;[2][1][5] nōn secus ac, just as.[2][1][5]
- Amiss, badly, contrary to what is wished.[2]
- paulō secus, nearly, not far off.[2]
Preposition
Word family
- altrīnsecus
- circumsecus
- extrīnsecus
- forīnsecus
- intrīnsecus
- utrimquesecus
- utrinsecus
Related words
References
- ^ a b c d e f g h i j k l 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 Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b c d e f g h 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 Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
- ^ a b Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
Related etymologies
Cite this entry
“Secus.” Etymologically, 18 Oct. 2026, etymologically.com/la/secus. Accessed 19 Oct. 2026.
Last edited on . ·