- Confidence
- Established
- Formation
- Borrowing
- First attested
- 1611 (Cotgrave)
- Borrowed from
- French similaire
- Ultimate origin
- Latin (similis)
Pronunciation
- IPA: UK /ˈsɪm.ɪ.lə/, US /ˈsɪm.ə.lɚ/[1]
Etymology
It is borrowed from French similaire,[2][3][4] perhaps also from Medieval Latin *similāris, an extended form of Latin similis (“like, resembling, of the same kind”).[2][3][5] Latin similis is from Old Latin semol (“together”),[3][6] from Proto-Indo-European *sem- (“one; as one, together with”).[3][4][7] An earlier form, similary, is recorded from the 1560s.[3][2][7] It is related to same, simile, assimilate, resemble and simulate.[2][6][8]
Earliest recorded meaning
Having a marked likeness, of a like kind: 1611, in Cotgrave's dictionary.[2][9][10]
Semantic evolution
Chiefly in anatomy, similar also meant “of the same substance throughout, homogeneous”, from 1626 to the early 18th century.[9][5][8] In mathematics, similar figures, with equal angles and proportional sides, are recorded from 1704.[9] In music, similar motion, in which voices move in the same direction, is from 1861.[9] The noun “that which is similar” is from the 1650s,[3] or 1654 according to Merriam-Webster.[11] Similarity is from 1664.[2] In Perthshire dialect, similar the same meant “nearly the same”.[12]
Timeline
- 1560s – earlier form similary.[3]
- 1611 – having a resemblance (Cotgrave).[2][9]
- 1626 – homogeneous (obsolete).[9]
- 1650s – noun, something similar.[3]
- 1664 – similarity.[2]
- 1704 – in geometry.[9]
- 1861 – similar motion in music.[9]
Modern meaning
Adjective
- Alike in appearance or nature, though not identical.
- (geometry) Having equal corresponding angles and proportional sides.
Noun
- Something similar to another.
Word family
- similarly
- nonsimilar
- unsimilar
- self-similar
- similarity
Related words
- dissimilar
- same
- simile
- assimilate
- resemble
- simulate
- semblance
References
- ^ Jones, Daniel (2011), Cambridge English Pronouncing Dictionary, 18th ed., ed. Peter Roach, Jane Setter and John Esling, Cambridge: Cambridge University Press
- ^ a b c d e f g h Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
- ^ a b c d e f g h Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
- ^ a b The American Heritage Dictionary of the English Language (2000), 4th ed., Boston: Houghton Mifflin
- ^ a b Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
- ^ a b Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
- ^ a b Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
- ^ a b Cresswell, Julia (2021), Oxford Dictionary of Word Origins, 3rd ed., Oxford: Oxford University Press
- ^ a b c d e f g h Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press
- ^ Merriam-Webster's Collegiate Dictionary (2003), 11th ed., Springfield, Mass.: Merriam-Webster
- ^ Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
- ^ 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)
Related etymologies
Cite this entry
“Similar.” Etymologically, 15 Oct. 2026, etymologically.com/en/similar. Accessed 15 Oct. 2026.
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