aptitude

Etymology

It is inherited from Middle English aptitude (“tendency, likelihood”),^[2][3] borrowed from Late Latin aptitūdō (“fitness”),^[2][3][4][5] a noun of quality formed from aptus (“joined, fitted”), the source of apt, with the suffix -tūdō.^[4][5][6] Barnhart takes the word as borrowed either through Middle French aptitude or directly from the Late Latin noun,^[7] and Dictionary.com and the Oxford Dictionary of English also bring it through French;^[8][9] the OED, which first records it in 1548, derives it from French, where Littré finds the word in the 16th century.^[6] The Shorter Oxford notes that the Late Latin noun is used by Boethius.^[10] The same Latin noun gave attitude by way of Italian attitudine; it is a doublet of aptitude.^[4][7][10]

Earliest recorded meaning

Tendency, likelihood: probably before 1425, in a Middle English translation of Guy de Chauliac's Grande Chirurgie, which speaks of an aptitude of vomityng.^[2][7][4] The OED, in an entry not fully revised since 1885, has no record before 1548.^[6]

Semantic evolution

The first sense, a natural tendency or disposition, is recorded in the OED from 1633,^[6] in the Shorter Oxford from late Middle English.^[10] The sense "natural capacity to learn, quick-wittedness" appears in 1548, in Udall's translation of Erasmus,^[6][4] and "fitness for a purpose or position" in 1643, in Milton.^[6][4] "Natural ability, talent for a pursuit" is recorded from 1793, and in 1775 Burke used the word of the capabilities of countries.^[6] Johnson (1755) listed "fitness" and "tendency".^[11] In the 17th and early 18th centuries aptitude was also used for attitude, a posture.^[10] The Shorter Oxford cites its attributive use in aptitude tests.^[10]

Timeline

• before 1425 – tendency, likelihood.^[2][7]
• 1548 – natural capacity to learn; intelligence.^[6][4]
• 1633 – natural tendency or disposition.^[6]
• 1643 – fitness, suitability, in Milton.^[6][4]
• 1775 – of countries, capability, in Burke.^[6]
• 1793 – natural ability, talent.^[6]

Meanings

Noun

1. A natural ability or talent, or a capacity to acquire a skill: He showed an early aptitude for mathematics.^{[12][5][6][10]}
2. Quickness in learning or understanding; intelligence.^[12][5][6]
3. A natural tendency or inclination.^[5][6][10]
4. Fitness or suitability; aptness.^[12][5][6]

Word family

• aptitudinal
• aptitudinally

Related words

• apt
• attitude
• aptness

References

1. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
2. ^ 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)
3. ^ a b The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
4. ^ a b c d e f g h Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
5. ^ a b c d e f Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
6. ^ a b c d e f g h i j k l m n o p Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
7. ^ a b c d Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
8. ^ Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
9. ^ Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
10. ^ a b c d e f g Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
11. ^ Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
12. ^ a b c Collins English Dictionary (2023), Glasgow: HarperCollins