Word.ws English Dictionary

Undecimber

Undecimber proper noun: a fictitious thirteenth month of the Western calendar.

Proper noun

Undecimber

  1. A fictitious thirteenth month of the Western calendar.

Origin of Undecimber

From Latin undecim (“eleven”); formed as logical continuation to December, which in its turn is derived from Latin decem (“ten”), as it was the tenth month in the Roman calendar. It is unclear whether the term was ever used in Classic Latin as a name for an intercalary month.

Questions about Undecimber

What does Undecimber mean?
Undecimber means a fictitious thirteenth month of the Western calendar.
What part of speech is Undecimber?
Undecimber is a proper noun.

Words near Undecimber in the dictionary

  1. undecillionths
  2. undecimal
  3. undecimalized
  4. undecimarticulate
  5. undecimated
  6. Undecimber
  7. undecimic
  8. undecimvir
  9. undecimvirate
  10. undecimvirates
  11. undecimviri

Source and license

Adapted from Wiktionary: Undecimber (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “Undecimber.” Word.ws, https://word.ws/undecimber. Based on Wiktionary, CC BY-SA 4.0.