Etymologically

demonstrate

Etymology and origin of the English word demonstrate

Confidence
Established
Formation
Borrowing
First attested
1548
Borrowed from
Latin demonstratus
Ultimate origin
Latin (demonstro)

Pronunciation

  • IPA: /ˈdɛm.ənˌstɹeɪt/[1]

Etymology

It is borrowed from Latin demonstratus, the past participle of dēmōnstrāre (“to point out, show; prove”),[2][3][4][5] from de- (“entirely”) and mōnstrāre (“to show”), from monstrum (“divine omen, wonder”) (see monster).[3][2] It may also be a back-formation from demonstration, which is older (about 1380).[2]

Earliest recorded meaning

To point out, indicate, exhibit: 1548 in MWU, 1552 in the OED and Barnhart.[4][6][2]

Semantic evolution

The first sense is obsolete.[3][5] To prove by argument or deduction is from the 1570s,[3] and to show or display (feelings) from 1599.[6] To show how something works, as to customers or students, is from 1683.[3] To take part in a public demonstration for a cause is by 1888.[3]

Timeline

  • 1548 – to point out.[4]
  • 1570s – to prove by argument.[3]
  • 1599 – to show, display.[6]
  • 1683 – to explain by examples.[3]
  • 1888 – to protest publicly.[3]

Modern meaning

Verb

  1. To show clearly by evidence or reasoning; to prove.
  2. To show how something works or is done.
  3. To show or display a feeling or quality.
  4. To take part in a public protest or march.

Word family

  • demonstratedly
  • undemonstrated
  • counterdemonstrate
  • demonstrative
  • demonstrator
  • redemonstrate
  • demo
  • demonstrable
  • demonstration
  • monster
  • monstrance
  • remonstrate
  • muster

References

  1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  3. ^ a b c d e f g h i Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b c Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  5. ^ a b Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  6. ^ a b c Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press

Related etymologies

Cite this entry

“Demonstrate.” Etymologically, 16 Oct. 2026, etymologically.com/en/demonstrate. Accessed 16 Oct. 2026.

Last edited on . ·