dystrophy

Etymology

It is borrowed from New Latin dystrophia,^{[2][3][4][5][6]} formed from Greek δυσ- (dus-, “bad, ill”) and τροφή (trophḗ, “nourishment, food”).^[4][2][7][6] Merriam-Webster Unabridged analyses the Latin word as dys- with -trophia, the source of -trophy.^[3] Etymonline also records the spellings distrophy and distrophia,^[2] and the Latin form dystrophia, defective nourishment, is found in English in the New Sydenham Society's “Lexicon” of 1883.^[8]

Earliest recorded meaning

Defective nutrition: Etymonline dates the word to 1858.^[2] The OED's first record is from 1886, in W. R. Gowers's Manual of Diseases of the Nervous System,^[8] while Dictionary.com gives 1885–90^[5] and Merriam-Webster 1901.^[3]

Semantic evolution

The word first meant faulty or impaired nourishment of a part of the body.^[2][9][3] It is now used chiefly in muscular dystrophy, any of a group of hereditary diseases in which certain muscles waste away progressively.^[9][3] Collins also records an ecological sense: the state of lake water that is too acidic and too poor in oxygen to support life, because of too much humus.^[6]

Timeline

• 1886 – defective nutrition, or a disorder caused by it.^[8] Etymonline dates the word to 1858,^[2] and Merriam-Webster to 1901.^[3]

Meanings

Noun

1. Any of several disorders in which muscles weaken and waste away progressively, especially muscular dystrophy.^[3][9][6]
2. A disorder caused by poor or faulty nutrition, or such nutrition itself.^[3][6]
3. (ecology) A condition of lake water that is too acidic and poor in oxygen to support life, because of an excess of humus.^[6]

Word family

• dystrophic
• dystrophin
• leukodystrophy
• Duchenne muscular dystrophy
• muscular dystrophy
• myotonic dystrophy

Related words

• atrophy
• hypertrophy
• trophic

References

1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
2. ^ a b c d e f Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
3. ^ a b c d e f g h Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
4. ^ a b Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
5. ^ a b Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
6. ^ a b c d e f Collins English Dictionary (2023), Glasgow: HarperCollins
7. ^ Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
8. ^ a b c Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
9. ^ a b c Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press