Etymologically

codicillus

Etymology and origin of the Latin word codicillus

Confidence
Established
Formation
Derivation
First attested
234–149 BC, Cato
Ultimate origin
Latin (caudex)
Etymology tree
inherited borrowed derived
Latin codex
Latin codicillus

Forms

cōdicillus m (genitive cōdicillī); second declension[1] Seneca has the form cōdicellus.[2][3]

Etymology

It is a diminutive from Latin cōdex (“tree trunk; book”) + -illus,[1][3] the OLD giving the older form caudex as its base.[2] De Vaan derives caudex from the stem of cauda (“tail”), going back to Proto-Italic *kaudek- and Proto-Indo-European *keh₂u-d- (“cleaved, separate”); ⟨cōdex⟩ is the younger form, used of books.[4]

Earliest recorded meaning

Köbler's first source is Cato,[5] who has it in its literal sense: “stack the small logs in a heap for the owner”.[2]

Semantic evolution

From a small log it came, in the plural, to mean a set of writing tablets, as in Cicero's “he was writing your opinions in his tablets”, and a note or letter written on them.[2][6] Under the empire it is an emperor's rescript or written order, as in Tacitus, and also a petition to the emperor.[2] It is also a supplement to a will or other posthumous instructions, a codicil;[2][1] Tacitus has defamatory writings published under the title of codicils.[2][1]

Church Latin glosses it “appendix to a will, codicil, brief written note”.[7]

Timeline

  • 234–149 BC – Cato of small logs.[2][5]
  • 81–43 BC – Cicero of writing tablets and letters.[2][5]
  • 98–115 AD – Tacitus of imperial rescripts, petitions and codicils.[2][5]
  • early 15th century – Borrowed into English as codicil.[8]

Meanings

Noun

  1. A small log.[2][1]
  2. (plural) Writing tablets; a note, letter.[2][6][1]
  3. An imperial rescript; a petition to the emperor.[2][1]
  4. A codicil to a will.[2][1][7]

Word family

  • cōdicillāris

References

  1. ^ a b c d e f g h 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 Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  5. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ a b Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  7. ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  8. ^ Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
Cite this entry

“Codicillus.” Etymologically, 19 Oct. 2026, etymologically.com/la/codicillus. Accessed 20 Oct. 2026.

Last edited on . ·