fitter

Etymology

It is formed from English fit + -er, an agent noun from the verb.^[2][3][4][5] The verb is first recorded about 1400 meaning to marshal troops.^[3][2] The sense "to be suitable" dates to the early 15th century.^[3] The verb is probably formed from the adjective, which is of unknown origin, and perhaps partly from Scandinavian, compare Old Norse fitja (“to knit”).^[3][2] The OED finds the likeness to the Dutch verb vitten (“to suit, agree, adapt”) of the 16th and 17th centuries remarkable, but thinks the two most probably developed the sense independently.^[2]

Earliest recorded meaning

One who or that which fits or adapts something: 1648, in H. Hexham's Groot Woorden-boeck.^[2][4] Etymonline dates the noun to the 1650s,^[3] and Dictionary.com to 1650–60.^[6]

Semantic evolution

Johnson (1755) defined the word as the person or thing that makes something fit for a purpose, quoting Mortimer's Husbandry on furze-seed as "a fitter of it for corn".^[5] The trade senses came in the 19th century: a worker who fits or assembles parts, as in gas-fitter and hot-water-fitter (1851), a mechanic who assembles or repairs machine and engine parts, and a person who supervises the cutting out and altering of garments for customers (1858).^[2][4] In American underworld slang of the 1840s a fitter was a maker of skeleton keys.^[7] In Ulster a husband whose bride turned out well might be told he had found a good fitter.^[8]

Timeline

• 1648 – one who or that which fits or adapts something.^[2][4]
• 1845 – American underworld slang, a maker of skeleton keys.^[7]
• 1851 – a tradesman who fits or installs parts or fixtures, as in gas-fitter.^[2][4]
• 1858 – a person who supervises the cutting out, making and altering of garments.^[2][4]

Meanings

Noun

1. A mechanic who assembles, fits together or repairs the parts of machines or engines.^[9][4]
2. A person who installs or fixes appliances and fittings of any kind, as in gas fitter or carpet fitter.^[4][2]
3. A person who tries clothes on customers and adjusts or alters them to fit.^[9][4][2]
4. Any person or thing that fits something or makes it fit.^[9][2][4][5]

Word family

• shipfitter
• steamfitter
• pipe fitter

Related words

• fit
• fitting
• outfit

Usage notes

The OED enters two other words of this spelling.^[2] A fitter in the coal trade of the north-east was a coal-broker who sold and loaded coals, recorded from 1678; it comes from the verb fitt, to vend and load coals (1601, in an act of the Newcastle Hostmen), of uncertain origin.^[2] An obsolete verb fitter, to break into small fragments, is recorded from about 1380, in Wyclif, to 1600;^[2][4] it is perhaps related to Middle High German vetze (“rag, scrap”) and German Fetzen, with the frequentative suffix -er, and the Shorter Oxford compares fritter.^[2][4] Johnson likewise entered a noun fitter, a small piece, "as, to cut into fitters".^[5]

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 Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
3. ^ a b c d e Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
4. ^ a b c d e f g h i j k l 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 Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
6. ^ Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
7. ^ a b Green, Jonathon (2010), Green's Dictionary of Slang, London: Chambers; digital ed. 2016–, https://greensdictofslang.com
8. ^ Wright, Joseph, ed. (1898–1905), The English Dialect Dictionary, 6 vols., Oxford: Henry Frowde; via EDD Online 4.0, University of Innsbruck (CC BY 4.0)
9. ^ a b c Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster