Etymologically

Etymology and origin of the English word boastful

Confidence
Established
Formation
Derivation
First attested
c. 1325 Coer de Lyon More words from the 14th century
Ultimate origins
Anglo-Norman bostOld English -ful
Etymology tree
inherited borrowed derived
English boast
English boastful

Pronunciation

  • /ˈbəʊstfʊl/, /ˈbəʊstf(ə)l/[1]

Etymology

It is inherited from Middle English bostful, also spelled boostful,[2][3] formed from English boast + -ful,[4][5][6] the base being the Middle English noun bost.[2][3] The OED calls the origin of that noun and of its verb unknown, both being found before 1300,[4] while Etymonline derives the noun from Anglo-Norman bost (“ostentation”), probably of Scandinavian origin.[5]

Earliest recorded meaning

Of words or actions, full of boasting: about 1325, in Coer de Lyon.[4] The Middle English Dictionary also quotes "bostful wrdys" from Mannyng, which it dates to about 1303 in a manuscript of before 1400,[2] and Etymonline dates the word to the early 14th century.[5]

Semantic evolution

The adjective was soon applied to people as well as to their words: Wyclif's works have it about 1380, and a Wycliffite sermon says that "Þis riche man was boostful in speche".[4][2] The early Wycliffite Bible of 1382 has it in a sense that both the OED and the Middle English Dictionary gloss, with a question mark, as menacing.[4][2] Johnson (1755) defined it as "ostentatious; inclined to brag", quoting Pope.[7]

Timeline

  • c. 1325 – of words or actions, full of boasting.[4]
  • c. 1380 – of people, given to boasting.[4]
  • 1382 – perhaps menacing, in the Wycliffite Bible, now obsolete.[4][2]

Meanings

Adjective

  1. Of a person: inclined to boast or brag: a boastful young captain.[3][4][8]
  2. Of words or actions: full of boasting; showing too much pride in oneself: boastful talk about his salary.[3][4][8]
  3. (obsolete, 1382) Perhaps menacing.[4][2]

Word family

  • boastfully
  • boastfulness
  • overboastful
  • unboastful

References

  1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g Kurath, Hans; Kuhn, Sherman M.; Lewis, Robert E., eds. (1952–2001), Middle English Dictionary, Ann Arbor: University of Michigan Press; online edition ed. Frances McSparran et al. (2000–2018)
  3. ^ a b c d Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  4. ^ a b c d e f g h i j k Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  5. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  6. ^ Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
  7. ^ Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
  8. ^ a b Soanes, Catherine; Stevenson, Angus, eds. (2004), Concise Oxford English Dictionary, 11th ed., Oxford: Oxford University Press
Cite this entry

“Boastful.” Etymologically, 7 Nov. 2026, etymologically.com/en/boastful. Accessed 7 Nov. 2026.

Last edited on . ·