regenerate

Etymology

It is borrowed from Latin regenerātus, the past participle of regenerō (“to produce again, reproduce”),^[2][3][4][5] which is formed from re- (“again”) and generō (“to beget, create”).^[6][5][2] The adjective came first, in late Middle English; the verb, from the stem of the Latin past participle, dates from the mid 16th century.^[2][5][7] In the Vulgate the Latin verb also meant to cause to be spiritually reborn.^[2] Barnhart takes the verb as partly a back-formation from regeneration and partly a development of the adjective, replacing the earlier regeneren (before 1400), which was borrowed from Old French regenerer and directly from Latin;^[8] Etymonline likewise allows either source.^[3] The OED compares Middle French regenerer and French régénérer.^[2] Skeat and Weekley trace the Latin verb to genus (“birth, race, kind”).^[9][10] The OED suggests that the noun use, a regenerate person, may first have followed Italian rigenerato.^[2]

Earliest recorded meaning

As an adjective, spiritually reborn: about 1435, in Lydgate's Life of St Edmund and St Fremund.^[2] Barnhart dates the adjective, reborn or formed anew, to 1433,^[8] and Dictionary.com to 1425–75.^[11]

Semantic evolution

The adjective was at first mainly theological: born again, especially as a Christian.^[3][2] From about 1536 it also meant reborn or brought into being again in another form; from 1565 it was used in medicine of tissue formed again.^[2] Chapman used it in 1613 for "restored to a better state, reformed".^[2] A rare use for "degenerate, renegade" (1596–1658) seems to be a confusion with degenerate.^[2] The verb is first recorded in the spiritual sense in the Asloan Manuscript, before 1525,^[2] although Barnhart has no record of that sense before 1557.^[8] The medical sense, of the body or a part of it growing again, is already in Robert Copland's translation of Guy de Chauliac (c. 1541),^[2][8] while Etymonline dates the use of body parts to the 1590s.^[3] Later the verb spread to moral reform (1755), to reinvigorating people and institutions (1660) and, in recent use, to reviving run-down areas by improving economic and social conditions.^[2] Technical senses followed in the 19th and 20th centuries: in engineering, using waste heat to preheat incoming air or fuel (1869), in chemistry restoring the activity of a catalyst or resin (1912), and reprecipitating cellulose or a protein as fibre (1854).^[2] Johnson (1755) knew only the adjective, as "reproduced" and "born anew by grace to a Christian life", quoting Shakespeare's Richard II.^[12]

Timeline

• c. 1435 – adjective, spiritually reborn.^[2] Barnhart dates the adjective to 1433.^[8]
• before 1525 – verb, to cause to be spiritually reborn.^[2]
• c. 1541 – verb, of the body or tissue, to form again after loss or injury.^[2][8]
• 1542 – verb, to bring into existence again, reproduce.^[2]
• c. 1551 – noun, a regenerate person.^[2] Merriam-Webster dates the noun to 1551.^[4]
• 1613 – adjective, restored to a better state, reformed.^[2]
• 1660 – verb, to reinvigorate a person or institution.^[2]
• 1755 – verb, to reform completely.^[2]
• 1869 – engineering, to use waste heat to preheat incoming air or fuel.^[2]
• 1912 – chemistry, to restore the activity of a catalyst or resin; noun, an organism or part formed by regeneration.^[2]

Meanings

Verb

1. Of a living thing, to grow again a lost or damaged part or tissue, or of such a part, to grow again: Some lizards can regenerate a lost tail.^[13][4][2]
2. To bring new life or energy to; to revive, especially a run-down area or industry: The council hopes to regenerate the old docks.^[13][2]
3. To reform morally or spiritually; in theology, to cause to be born again.^[13][4][2]
4. To form or bring into existence again.^[13][4][2]
5. In chemistry, to restore a catalyst, resin or similar substance to an active state.^[13][2]
6. In engineering, to use heat that would otherwise be lost to preheat incoming air or fuel.^[2]

Adjective

1. Spiritually reborn or converted.^[4][2]
2. Restored to a better state; reformed.^[4][2]
3. Formed or created again.^[4][2]

Noun

1. A spiritually reborn person (now rare).^[4][2]
2. In biology, an organism or part formed by regeneration.^[4][2]

Word family

• regenerable
• regenerately
• regenerator
• regenerateness
• regeneracy
• nonregenerating
• unregenerating
• unregenerate

Related words

• regeneration
• regenerative
• generate
• degenerate
• genus

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 s t u v w x y z 27 28 29 30 31 32 33 34 35 36 Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
3. ^ a b c d Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
4. ^ a b c d e f g h i j Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
5. ^ a b c Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
6. ^ The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
7. ^ Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
8. ^ a b c d e f Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
9. ^ Skeat, Walter W. (1911), A Concise Etymological Dictionary of the English Language, new ed., Oxford: Clarendon Press
10. ^ Weekley, Ernest (1921), An Etymological Dictionary of Modern English, London: John Murray
11. ^ Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
12. ^ Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
13. ^ a b c d e Collins English Dictionary (2023), Glasgow: HarperCollins