presumptive

Etymology

It is borrowed from Late Latin praesūmptīvus,^[2][3][4][5] recorded in post-classical Latin for "bold, insolent" in the 5th century, for "giving reasonable grounds for presumption" in the 6th, and in British sources in the 13th;^[2] the Middle English Dictionary and Etymonline take it from Medieval Latin.^[5][4] The Latin adjective is formed from praesūmptus, the past participle of praesūmō (“to anticipate, take in advance, suppose”), with the suffix -īvus.^[2][3][4] The Latin verb is the source of presume.^[2][4] Klein, the Shorter Oxford and the Oxford Dictionary of English bring it through French présomptif;^[6][7][8] the OED compares Anglo-Norman presumptif, which is recorded from about 1292 for "presumptive" and "arrogant",^[9][2] and notes that the French word is not found on the Continent in the sense "based on presumption" until 1611, in Cotgrave.^[2]

Earliest recorded meaning

Based on presumption or supposition, presumed: about 1443, in Reginald Pecock's Reule of Crysten Religioun, of a belief not grounded in reason.^[2][5]

Semantic evolution

The heir presumptive, whose right to inherit can be set aside by the birth of a nearer heir, is recorded from 1628,^[2] and French had the corresponding phrase héritier présomptif in 1406.^[2] From 1561 the adjective also meant giving reasonable grounds for belief, now chiefly in presumptive evidence.^[2][3] From 1609 it was used for presumptuous, a sense now archaic.^[2][3] Johnson (1755) gave the senses "taken by previous supposition", "supposed" (as in the presumptive heir) and "confident, arrogant, presumptuous".^[10] In 20th-century embryology it describes tissue that is not yet differentiated but is expected to develop into a given part (1927).^[2][11]

Timeline

• c. 1443 – based on presumption, presumed.^[2][5]
• 1561 – giving reasonable grounds for belief.^[2]
• 1609 – presumptuous (now archaic).^[2][3]
• 1628 – heir presumptive.^[2] Etymonline dates the phrase to the 1620s.^[4]
• 1927 – in embryology, of tissue expected to develop into a particular part.^[2]

Meanings

Adjective

1. Giving reasonable grounds for belief or inference: The fingerprints were presumptive evidence of his guilt.^[3][11][2]
2. Based on probability or presumption; presumed, expected: the presumptive nominee of the party.^[3][11][2]
3. (embryology) Of tissue: not yet differentiated but expected to develop into a particular part.^[3][11][2]
4. (archaic) Presumptuous.^[3][2]

Word family

• presumptively
• heir presumptive

Related words

• presumable
• presumably
• presume
• presumption
• presumptuous
• heir apparent

References

1. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
2. ^ a b c d e f g h i j k l m n o p q r s t u Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
3. ^ a b c d e f g h i Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
4. ^ a b c d e Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
5. ^ a b c d 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)
6. ^ Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
7. ^ Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
8. ^ Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
9. ^ Anglo-Norman Dictionary (AND2), Aberystwyth University, anglo-norman.net (2nd ed., 2005–)
10. ^ Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
11. ^ a b c d Collins English Dictionary (2023), Glasgow: HarperCollins