Etymologically

Etymology and origin of the Latin word ast

Confidence
Probable
Formation
Compound
First attested
c. 450 BC, Twelve Tables
Ultimate origin
Latin (at)
Etymology tree
inherited borrowed derived
Latin at
Latin ac
Latin ast
Latin atqui
Latin atque

Pronunciation

  • Classical: [ˈast][1]
  • Ecclesiastical: [ˈast][1]

Forms

ast [1] Inscriptions write astu for ast tu.[2]

Etymology

It is an amplified form of at (“but”).[2] De Vaan suspects that it hides ⟨*at-est⟩ “but is”, contracted to ⟨*atst⟩, and Wiktionary also takes it as from Latin at (“but”) + est (“is”).[3][1] The Thesaurus calls its origin unknown.[4] Grammarians note that its syllable is long by position, not by nature.[4]

Earliest recorded meaning

De Vaan dates it from the Twelve Tables;[3][5] a law ascribed to the kings has “if a boy beats his parent, and the parent cries out, let the boy be accursed to the gods of the parents”.[2]

Semantic evolution

In old laws and formulas it introduces a further condition, “but if, and if”, as in the archaic laws Cicero composes for his De legibus and in Plautus.[2] In a vow it introduces the consequence, “then”, as in Livy's prayer: “Bellona, if you give us victory today, then I vow you a temple”.[2] From Ennius on it is a poetic word for “but, however, whereas”, usually before a vowel, and in a weaker sense “while, and”.[2] Virgil also uses it for “and then”, as at the end of the Aeneid where Aeneas buries his sword and Turnus' limbs grow slack with cold.[2]

Church Latin glosses it “but, and, on the other hand”.[6]

Timeline

  • c. 450 BC – The Twelve Tables use it in a condition.[3][5]
  • 204–169 BC – Ennius uses it for “but”.[2][5]
  • 59 BC–17 AD – Livy quotes it in a vow formula.[2][5]
  • 70–19 BC – Virgil of “and then”.[2][5]

Meanings

Conjunction

  1. In laws, but if, and if.[2][1]
  2. In vows, in that event, then.[2]
  3. (poetic) But, however, whereas; and, while.[2][7][1]
  4. And then, forthwith.[2][1]

References

  1. ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  4. ^ a b Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  5. ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  7. ^ Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
Cite this entry

“Ast.” Etymologically, 19 Oct. 2026, etymologically.com/la/ast. Accessed 20 Oct. 2026.

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