Etymologically

Etymology and origin of the Latin word erroneus

Confidence
Established
Formation
Derivation
First attested
4 BC–65 AD Seneca, De beneficiis More words from the 1st century BC
Ultimate origin
Latin errō
Etymology tree
inherited borrowed derived
Latin errō
Latin errōneus
English erroneous
From the same root
Latin aberrō ← errō
Latin deerrō ← errō
Latin errābundus ← errō
Latin errāticus ← errō
Latin error ← errō
Latin oberrō ← errō
Latin pererro ← errō

Pronunciation

  • Classical: [ɛrˈroː.ne.ʊs][1]
  • Ecclesiastical: [erˈrɔː.ne.us][1]

Forms

errōneus (feminine errōnea, neuter errōneum); first/second-declension adjective[1]

Etymology

It is formed from Latin errō (“wanderer, vagabond”) + -eus,[2][1][3] a noun made from the verb errō (“to wander”).[4]

Earliest recorded meaning

Seneca (4 BC–65 AD) pairs it with vagus “roving”,[5][6] and the OLD's first citation is from Columella, in the 1st century AD, who says that watchdogs should stay at their post and not be given to wandering.[2][6]

Semantic evolution

In Classical Latin it meant “roving, straying”, of people and animals.[2][5] Apuleius notes that the planets are wrongly called “wandering” stars.[2]

In Late Latin it came to mean “mistaken, erroneous”,[4][1] and medieval writers used it of false opinions and conduct as well as of wandering;[7][8] Niermeyer records the sense “heretic”.[9] Ecclesiastical Latin uses it for “wrong, erroneous”.[10] English borrowed erroneous in the late 14th century, from Latin, partly through French.[4]

Timeline

  • 4 BC–65 AD – Seneca pairs it with vagus.[5][6]
  • 1st century AD – Columella uses it of dogs that wander off.[2][6]
  • c. 125–175 AD – Apuleius applies it to the planets.[2][6]
  • late 14th century – English borrows it as erroneous.[4]

Meanings

Adjective

  1. Given to wandering, straying, vagrant.[2][5]
  2. Of planets: wandering.[2]
  3. (Late Latin) Mistaken, erroneous, false.[1][10][8]
  4. (Medieval Latin) Sinful; heretical; as a noun, a heretic.[7][9]

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h 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. ^ a b c d Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  5. ^ a b c d Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  6. ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  7. ^ a b Mittellateinisches Wörterbuch bis zum ausgehenden 13. Jahrhundert (1967–), Munich: C. H. Beck; Bayerische Akademie der Wissenschaften
  8. ^ a b Latham, R. E., D. R. Howlett, R. K. Ashdowne, et al. (1975–2013), Dictionary of Medieval Latin from British Sources, London: British Academy / Oxford University Press
  9. ^ a b Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  10. ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
Cite this entry

“Erroneus.” Etymologically, 7 Nov. 2026, etymologically.com/la/erroneus. Accessed 8 Nov. 2026.

Last edited on . ·