Etymologically
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rusty

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Pronunciation

rusty1 covered with rust

Etymology

The adjective meaning covered with rust is inherited from Middle English rusti,[2] inherited from Old English rūstig,[3][4][5][6] formed from Old English rūst + -ig, from rust.[3][7][8][5] It is cognate with West Frisian roastich, Middle Dutch roestich, Dutch roestig, Old High German rostag and German rostig,[5][9] and early modern Danish had rustig.[9] The OED notes that it may be a separate formation in each language rather than one inherited word.[9] Wiktionary reconstructs Proto-Germanic *rustagaz.[1]

Earliest recorded meaning

Of metal: covered or corroded with rust: in the Old English translation of Orosius, where the bolts of the doors of Janus are rustega.[9][6] Merriam-Webster dates it to before the 12th century.[3]

Semantic evolution

In Piers Plowman (c. 1390) the word meant morally corrupt, a figurative sense that later died out.[9][7] From before 1425, in the Romaunt of the Rose, it described an old person who looked worn and shabby.[9] The OED notes that in the 16th and 17th centuries it was often a term of general disparagement.[9][5] John Trevisa used it for the colour of rust before 1398.[9] It was used of rough, unpolished poetry from about 1425, chiefly in Scotland,[9] and of a harsh or croaking voice from about 1430.[9] The now common sense "out of practice" began with people weakened by age or idleness, in William Dunbar about 1507,[9][5] and was extended to knowledge and skills impaired by disuse from 1575.[9] Etymonline dates this extension to mental skills and learning only to 1796.[5] Of clothes, rusty meant faded and shabby from about 1460.[9] From 1549 it also meant antiquated or old-fashioned.[9] Johnson (1755) defined it first as "covered with rust; infected with rust".[10]

Timeline

  • Old English – covered or corroded with rust.[9][6]
  • c. 1390 – morally corrupt (obsolete).[9]
  • before 1398 – of the colour of rust.[9]
  • before 1425 – of an old person, shabby or decrepit in appearance.[9]
  • c. 1430 – of a sound or voice, harsh, croaking.[9]
  • before 1460 – of clothing, faded through use.[9]
  • c. 1507 – of a person, impaired by age or inactivity.[9]
  • 1549 – antiquated, old-fashioned.[9]
  • 1575 – of knowledge or skills, impaired by disuse.[9]

Meanings

Adjective

  1. Covered with or affected by rust: a rusty gate.[11][3][9]
  2. Of the colour of rust; reddish-brown.[11][9]
  3. Out of practice; less skilful through lack of use: My Spanish is a bit rusty.[11][3][9]
  4. Of clothing, faded or discoloured with age; shabby.[11][9]
  5. Of a voice, hoarse or croaking.[11][9]
  6. Old-fashioned; antiquated.[11][9]
  7. (obsolete, 1390–1910) Morally corrupt; wicked.[9][7]

Word family

  • rustily
  • rustiness

rusty2 restive, bad-tempered

Etymology

The adjective meaning restive or bad-tempered is an alteration of resty,[3][9][7][12] probably through association with rusty "covered with rust".[9][7][3] Resty itself was a variant of restiff, the earlier form of restive.[9][12]

Earliest recorded meaning

Of a horse, refusing to go forward, hard to control: 1555, in John Heywood's Two Hundred Epigrammes.[9][3]

Semantic evolution

From the horse the word passed to people: stubborn and refractory from 1625,[9] and bad-tempered or angry from 1694, often in to turn rusty.[9] Green's Dictionary of Slang records the sense "ill-tempered" already in 1600, in John Marston.[13] The phrases to ride rusty (1709) and to run rusty (1718) meant to be obstinate or to take offence,[9][7] and in American colloquial use to cut a rusty (1835) meant to play a prank or show a burst of energy.[9] Merriam-Webster labels the ill-tempered sense chiefly dialectal.[3]

Timeline

  • 1555 – of a horse, restive.[9][3]
  • 1600 – ill-tempered.[13]
  • 1625 – refractory, stubborn (obsolete by 1659).[9]
  • 1694 – of a person, bad-tempered, angry.[9]
  • 1709 – to ride rusty.[9]
  • 1835 – U.S., a prank or outburst, in to cut a rusty.[9]

Meanings

Adjective

  1. (chiefly dialect) Surly or bad-tempered; irritable.[3][7][9]
  2. Of a horse, restive and hard to control.[3][9][7]

Usage notes

A third rusty, meaning rancid, used especially of bacon, is a variant of resty in the sense "rancid", from French resté, left over; it is recorded from about 1521 and survives in dialect.[9][7][12]

References

  1. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
  3. ^ a b c d e f g h i j k l Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  4. ^ Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
  5. ^ a b c d e f Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  6. ^ a b c Bosworth, Joseph; Toller, T. Northcote (1898), An Anglo-Saxon Dictionary, Oxford: Clarendon Press; Toller, T. Northcote (1921), Supplement
  7. ^ a b c d e f g h i Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  8. ^ Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
  9. ^ 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 37 38 39 40 41 42 43 44 45 46 Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  10. ^ Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
  11. ^ a b c d e f Collins English Dictionary (2023), Glasgow: HarperCollins
  12. ^ a b c Weekley, Ernest (1921), An Etymological Dictionary of Modern English, London: John Murray
  13. ^ a b Green, Jonathon (2010), Green's Dictionary of Slang, London: Chambers; digital ed. 2016–, https://greensdictofslang.com