accumulation

Etymology

It is borrowed from Middle French accumulacion, also accumulation, and its source Latin accumulātiō (“a heaping up”),^[2][3][4] a noun of action from accumulō (“to heap up, amass”),^[2][5][6] formed from ad- (“to”), here perhaps emphatic, and cumulō (“to heap up”), from cumulus (“heap”).^[5] Etymonline traces the Latin noun to a suffixed form of Proto-Indo-European *keue- (“to swell”).^[5] The French word meant an accumulated mass from 1336 and the action of accumulating from 1401;^[2] compare Italian accumulazione and Spanish acumulación.^[2]

Earliest recorded meaning

Both an accumulated mass and the action of heaping up: 1490, in Caxton's translation Eneydos.^[2] Etymonline gives the sense "that which is heaped up" from the late 15th century, and "act of heaping up" from about 1600.^[5]

Semantic evolution

The word soon passed from physical heaps to wealth: the growth of money or capital, especially by the steady addition of interest, is recorded from before 1661.^[2][4] At Oxford University, from 1692, it named the practice of taking a higher and a lower degree together or at a shorter interval than usual,^[2][4] and in the Church, from 1855, the saying of several offices together.^[2] In geology, from 1864, it was used of the growth of a mountain by material piled on its surface, as in mountain of accumulation.^[2] Johnson (1755) gave "the act of accumulating" and "the state of being accumulated".^[7]

Timeline

• 1490 – an accumulated mass; the action of heaping up.^[2]
• before 1661 – the growth of wealth or capital, especially by interest.^[2]
• 1692 – at Oxford University, the taking of degrees together.^[2]
• 1855 – the saying of several church offices together.^[2]
• 1864 – in geology, the growth of a mountain by accretion.^[2]

Meanings

Noun

1. The act or process of collecting or amassing things, or of growing in amount by gradual additions: the accumulation of dust in the attic.^[8][3][2]
2. Something that has been collected or heaped up; a mass formed by successive additions: an accumulation of unpaid bills.^[8][2]
3. In finance, the growth of capital by the keeping of interest or earnings.^[8][2][4]
4. At Oxford University, the taking of a higher and a lower degree together or at a shorter interval than usual.^[2][4]

Word family

• bioaccumulation
• nonaccumulation
• overaccumulation
• preaccumulation
• reaccumulation
• accumulation point

Related words

• accumulate
• accumulator
• cumulative
• cumulus

References

1. ^ 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 Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
3. ^ a b Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
4. ^ a b c d e Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
5. ^ a b c d Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
6. ^ Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
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 c Collins English Dictionary (2023), Glasgow: HarperCollins