Etymologically

terminus

Etymology and origin of the English word terminus

Pronunciation

  • IPA: /ˈtɜː.mɪ.nəs/ (UK); /ˈtɝ.mə.nəs/ (US)[1]

Etymology

It is borrowed from Latin terminus (“boundary, limit, end”),[2][3][4][5][6] from the Proto-Indo-European root *ter- “peg, post, boundary marker”.[4] It is related to term, terminal and determine.[4][5]

Earliest recorded meaning

A goal, end or finishing point (before 1617);[7][3][4][5] the OED also has a mathematical sense, a term (1571), now obsolete.[7]

Semantic evolution

In ancient Rome, Terminus was the god of boundaries and landmarks, and the word was used in English for him (1600) and for a statue or bust of the kind that marked boundaries (1645).[7][4][6] Learned phrases such as terminus a quo “starting point” go back to the 16th century.[7][4] The meaning “either end of a railway line”, or the station or town there, dates from 1836,[7][3][4] and was extended to bus and tram routes.[7][6]

Timeline

  • 1571 – in mathematics, a term (obsolete).[7]
  • 1600 – the Roman god of boundaries.[7]
  • before 1617 – a goal, end point.[7][3][5]
  • 1673 – a boundary, limit.[7]
  • 1836 – the end of a railway line.[7][3][4]

Modern meaning

Noun

  1. Either end of a railway, bus or other transport line, or the station or town there.
  2. The final point; the end or goal.
  3. A boundary, or a post or stone marking one.
  4. An extreme point, as the end of a glacier.
  • terminal
  • terminate
  • termination
  • terminus a quo
  • terminus ad quem
  • term
  • determine
  • exterminate

References

  1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ The American Heritage Dictionary of the English Language (1992), 3rd ed., Boston: Houghton Mifflin
  3. ^ a b c d e Barnhart, Robert K., ed. (1995), The Barnhart Concise Dictionary of Etymology, New York: HarperCollins
  4. ^ a b c d e f g h Harper, Douglas, Online Etymology Dictionary, https://www.etymonline.com
  5. ^ a b c d Merriam-Webster's Collegiate Dictionary (2003), 11th ed., Springfield, Mass.: Merriam-Webster
  6. ^ a b c Random House Webster's Unabridged Dictionary (1999), 2nd ed., New York: Random House
  7. ^ a b c d e f g h i j k Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press

Related etymologies

Cite this entry

“Terminus.” Etymologically, 11 Oct. 2026, etymologically.com/en/terminus. Accessed 11 Oct. 2026.

Last edited on . ·