germ

Etymology

It is borrowed from Middle French germe (“shoot, sprout”),^{[2][3][4][5][6]} from Latin germen (“sprout, shoot, bud”),^{[2][3][4][7][8]} from gen-, the stem of gignō (“to beget”), and the suffix -men, with dissimilation of n to r from an earlier *genmen.^{[2][3][9][10][11]} Etymonline calls the Latin word of uncertain origin, perhaps from Proto-Indo-European *gene- (“to give birth, beget”),^[4] the root of gene and generate.^[7] The Anglo-Norman germe meant a shoot or sprout from the early 12th century.^[12][2] It is related to germane, german and germinate.^[7][9][8] The verb germ, recorded from 1483 in Caxton, is probably from germer, from germinō, and later from the noun.^[2]

Earliest recorded meaning

A source or beginning from which something may develop: the OED's first record is about 1550, in the Complaynt of Scotland.^[2] Barnhart and Etymonline date the word to the mid 15th century, a bud or sprout, in a translation of Palladius on agriculture,^[3][4] but the OED takes that germ to be a copying error for gem, bud.^[2]

Semantic evolution

The word first named the part of a living thing that can grow into a new one, in plants and animals: the shoot of a seedling from 1644, the embryo of a seed from 1721, and in animals the embryo or rudiment of a part from 1646.^[2][3][4] That old sense survives in wheat germ and the germ of an idea.^[4][7] Already in 1700 it was used, after French, of the cause or "seed" of a disease,^[2] a sense Etymonline dates to 1796 and Barnhart and Ayto to 1803.^[4][3][7] With the germ theory of the later 19th century it came to mean a harmful microorganism (1871),^[4][3] and by the end of that century this was the everyday sense.^[7][13] Germ warfare is recorded from 1919,^[4] and in American slang germ has meant a contemptible person since the 1940s.^[14] The OED notes that in scientific writing the word often translates German Keim.^[2]

Timeline

• 1483 – verb, to put out shoots.^[2]
• c. 1550 – a source or beginning.^[2] Barnhart and Etymonline date the word to the mid 15th century.^[3][4]
• 1644 – the shoot of a germinating seed.^[2][3]
• 1646 – the part of an animal that develops into a new one; an embryo.^[2]
• 1700 – the cause of a disease.^[2]
• 1721 – the embryo of a seed, especially of a cereal grain.^[2]
• 1758 – botany, the ovary of a plant (obsolete by 1834).^[2][6]
• 1871 – a harmful microorganism, in germ theory.^[4][3]
• 1919 – germ warfare.^[4]

Meanings

Noun

1. A microorganism, especially one that causes disease: Wash your hands to keep germs from spreading.^[15][10][2]
2. The early form of something, from which it may develop: the germ of a plan.^[15][10][2]
3. A small mass of living matter able to grow into a new plant or animal, or into an organ; a bud or seed.^[15][10][2]
4. The embryo of a cereal grain, separated in milling, as in wheat germ.^[10][6][2]
5. (US slang) A contemptible person.^[14]
6. (obsolete, 1758–1834) (botany) The ovary of a plant.^[2][6]

Verb

1. To germinate; to put out shoots.^[10][2]

Word family

• germless
• germlike
• degerm
• germicidal
• germicide
• germproof
• germy
• multigerm

Related words

• german
• germane
• germinate
• germen
• germinal
• germinative
• gene
• generate
• genus
• kin

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 v w Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
3. ^ a b c d e f g h i j Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
4. ^ a b c d e f g h i j k l Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
5. ^ Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
6. ^ a b c d Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
7. ^ a b c d e f Ayto, John (2005), Word Origins: The Secret Histories of English Words from A to Z, 2nd ed., London: A & C Black
8. ^ a b Skeat, Walter W. (1911), A Concise Etymological Dictionary of the English Language, new ed., Oxford: Clarendon Press
9. ^ a b Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
10. ^ a b c d e f Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
11. ^ Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
12. ^ Anglo-Norman Dictionary (AND2), Aberystwyth University, anglo-norman.net (2nd ed., 2005–)
13. ^ Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
14. ^ a b Green, Jonathon (2010), Green's Dictionary of Slang, London: Chambers; digital ed. 2016–, https://greensdictofslang.com
15. ^ a b c Collins English Dictionary (2023), Glasgow: HarperCollins