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spy

Etymology and origin of the English word spy

History Permalink
Confidence
Established
Formation
Borrowing
First attested
c. 1250
Borrowed from
Old French espier
Ultimate origin
Proto-Indo-European (*speḱ-)

Pronunciation

  • IPA: /spaɪ/[1]

Etymology

The verb is Middle English spien, borrowed from Old French espier (“to observe, watch closely”) (see espy) with its first syllable lost, and the noun is likewise from espie (“spy, look-out”),[2][3][4][5] from Frankish *spehōn or another Germanic source, cognate with Old High German spehōn (“to look out, spy”) and German spähen,[2][3][4] from PIE Proto-Indo-European *spek- (“to observe”), also the source of Latin specere, to look.[2][3][4]

Earliest recorded meaning

As a verb, to watch secretly: about 1250, in Genesis and Exodus;[2] the noun, one who secretly watches others, about 1250 in the OED, the mid-13th century in Etymonline.[6][3]

Semantic evolution

To catch sight of or discover, especially from hiding, is from about 1300,[3] and to act as a spy from the mid-15th century.[3] A person employed in war to obtain secret information about the enemy is from the 14th century.[6] Italian spiare and Spanish espiar are also Germanic loanwords.[3] Old English had a different word, spyrian, to pursue or investigate.[3] The children's game I spy was so called by 1946, and the spymaster is from 1943.[3]

Timeline

  • c. 1250 – to watch secretly; a spy.[2][6]
  • c. 1300 – to catch sight of.[3]
  • 14th century – a military spy.[6]
  • 1943 – spymaster.[3]
  • 1946 – the game I spy.[3]

Modern meaning

Noun

  1. A person employed by a government or organization to gather secret information about an enemy or rival.
  2. A person who secretly watches others.

Verb

  1. To work as a spy, or to watch someone secretly.
  2. To catch sight of; to notice.

Word family

  • spyship
  • counterspy
  • spymaster
  • superspy
  • outspy
  • spier
  • spyhop
  • unspied

References

  1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  3. ^ a b c d e f g h i j k l Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b c Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
  5. ^ Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  6. ^ a b c d Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press

Related etymologies

Cite this entry

“Spy.” Etymologically, 16 Oct. 2026, etymologically.com/en/spy. Accessed 16 Oct. 2026.

Last edited on . ·