Etymologically
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Pronunciation

  • /ˈθʌm.neɪl/[1]

Etymology

It is formed from English thumb + nail.[2][3][4][5]

Earliest recorded meaning

The nail of the thumb: 1604, in Dekker and Middleton's The Honest Whore.[2][4] Etymonline gives about 1600.[3]

Semantic evolution

In 1852 a thumb-nail sketch was a drawing about the size of a thumbnail, and then, figuratively, a brief description in words;[2][3] Etymonline notes that thumbnail alone, short for the phrase, is recorded by 1901, usually without the literal size.[3] In printing a thumbnail was a miniature version of a document from 1933,[2] and in computing it became a small version of a digital image, often linked to the full-size one.[2][4][6] The verb, to describe in a thumbnail sketch, is recorded from 1932.[2][4]

Timeline

  • 1604 – the nail of the thumb.[2][4]
  • 1852 – thumb-nail sketch, a very small drawing; a brief description.[2][3]
  • 1932 – verb, to describe briefly.[2]
  • 1933 – a miniature version of a document; later, a small digital image.[2]
  • 1937 – thumbnail scraper, a small stone scraper, in archaeology.[2]

Meanings

Noun

  1. The nail of the thumb.[6][4][2]
  2. (computing) A small version of an image, often linked to the full-size version: Click a thumbnail to enlarge the picture.[6][4][2]
  3. Something small or short; as a modifier, brief and concise: a thumbnail biography.[6][4][2]

Verb

  1. To describe someone or something briefly, as in a thumbnail sketch.[4][2]

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 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 Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  5. ^ Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  6. ^ a b c d Collins English Dictionary (2023), Glasgow: HarperCollins