Etymologically

anceps

Etymology and origin of the Latin word anceps

Confidence
Established
Formation
Compound
First attested
Plautus
Ultimate origin
Latin (ambi-,caput)

Pronunciation

  • IPA (Classical): [ˈaŋ.kɛps][1]
  • IPA (Ecclesiastical): [ˈan̠ʲ.t͡ʃeps][1]

Forms

anceps (genitive ancipitis); third-declension one-termination adjective[1]

Etymology

It is from ambi- (“on both sides”) and -ceps (“headed”), from caput “head”.[2][1][3] Plautus has a nominative ⟨ancipes⟩.[2][4]

Earliest recorded meaning

The OLD's first citations are from Plautus, of a two-edged weapon and double dangers.[2] Köbler dates Plautus c. 250–184 BC.[5]

Semantic evolution

It meant two-headed, facing two ways, as Ovid's two-faced Janus, of weapons two-edged, as in Plautus, and exposed on both sides.[2][3] It meant twofold, double, having two meanings, of amphibians living two lives, of war fought on two fronts, as in Varro, and of dangers arising from two sides.[2] It meant wavering, undecided, of battles indecisive, as in Virgil and Livy, of outcomes doubtful, critical, and dangerous, perilous, with in ancipitī “in danger”.[2] It meant ambiguous, of persons unreliable or undecided, as in Sallust.[2] Döderlein says dubius and ambiguus concern doubt about success, anceps danger.[6]

In Ecclesiastical Latin it meant two-edged, double, uncertain, ambiguous, dangerous.[7] In Medieval Latin it meant a two-edged weapon, a two-handed sword.[8][9] English prosody uses the phrase syllaba anceps.[1]

Timeline

  • c. 250–184 BC – Plautus uses it of a two-edged weapon.[2][5]
  • 116–27 BC – Varro uses it of a war on two fronts.[2][5]
  • 70–19 BC – Virgil uses it of an undecided battle.[2][5]

Meanings

Adjective

  1. Two-headed; facing two ways; two-edged.[2]
  2. Twofold, double.[2]
  3. Wavering; undecided, indecisive.[2]
  4. Doubtful; critical.[2]
  5. Dangerous, perilous.[2]
  6. Ambiguous; unreliable.[2]

Word family

  • peranceps

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n o p Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  4. ^ Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  5. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ Döderlein, Ludwig (1874), Döderlein’s Hand-book of Latin Synonymes, tr. H. H. Arnold, Andover: W. F. Draper
  7. ^ Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  8. ^ Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  9. ^ 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
Cite this entry

“Anceps.” Etymologically, 16 Oct. 2026, etymologically.com/la/anceps. Accessed 16 Oct. 2026.

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