An illustration of a sinew, or tendon (sense 1), attaching muscles of the calf to the calcaneus or heel bone

From Middle English sineu, sineue, sinue (tendon; ligament or other connective tissue; muscle; nerve; leaf vein), from Old English seonu, sinewe, sinu (tendon, sinew; nerve),[1] from Proto-West Germanic *sinu, from Proto-Germanic *sinwō, *senawō (sinew), from Proto-Indo-European *snḗh₁wr̥ (tendon, sinew), from *(s)neh₁- (to twist (threads), spin, weave).

The word is cognate with sinnow (sinew), Scots senon, sinnon, Saterland Frisian Siene (sinew), West Frisian senuw, sine (sinew; nerve), Dutch zenuw (nerve, sinew), German Sehne (tendon, sinew; cord), Icelandic sin (tendon), Swedish sena (sinew), Avestan 𐬯𐬥𐬁𐬎𐬎𐬀𐬭(snāuuar, tendon, sinew), Ancient Greek νεῦρον (neûron, tendon; nerve; cord), Latin nervus (tendon, sinew; nerve), Sanskrit स्नावन् (snāván, sinew, tendon; muscle), Tocharian B ṣñor (sinew). Doublet of nerve and neuron.



sinew (plural sinews)

  1. (anatomy) A cord or tendon of the body.
  2. A cord or string, particularly (music) as of a musical instrument.
  3. (figuratively) Muscular power, muscle; nerve, nervous energy; vigor, vigorous strength.
  4. (figuratively, often in the plural) That which gives strength or in which strength consists; a supporting factor or member; mainstay.
    • c. 1603–1604, William Shakespeare, “Measvre for Measure”, in Mr. William Shakespeares Comedies, Histories, & Tragedies: Published According to the True Originall Copies (First Folio), London: [] Isaac Iaggard, and Ed[ward] Blount, published 1623, OCLC 606515358, [Act III, scene i], page 72, column 2:
      [S]he loſt a noble and renowned brother, in his loue toward her, euer moſt kinde and naturall: with him the portion and ſinew of her fortune, her marriage dowry: with both, her combynate-husband, this well-ſeeming Angelo.
    • 1658, Walter Raleigh, “A Collection of Political Observations (Confirmed by Reason and Experience) Advertising Princes, Statesmen, and Private Persons how to Demean Themselves in All Fortunes and Events”, in The Cabinet-Council: Containing the Cheif[sic] Arts of Empire, and Mysteries of State; [], London: Published by John Milton; printed by Tho[mas] Newcomb for Tho[mas] Johnson [], OCLC 64758219, page 101:
      The Bodies of Men, Munition, and Mony may justly be called the ſinews of War, yet of them the two firſt are more neceſſary, for Men and Arms have means to find Mony and Meate: but Mony and Meate cannot ſo eaſily find Soldiers and ſwords.
  5. (anatomy, obsolete) A nerve.

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The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout § Translations.


sinew (third-person singular simple present sinews, present participle sinewing, simple past and past participle sinewed)

  1. (transitive) To knit together or make strong with, or as if with, sinews.
    • c. 1591–1592, William Shakespeare, “The Third Part of Henry the Sixt, []”, in Mr. William Shakespeares Comedies, Histories, & Tragedies [] (First Folio), London: [] Isaac Iaggard, and Ed[ward] Blount, published 1623, OCLC 606515358, [Act II, scene vi], pages 157–158:
      And now to London with Triumphant march, / There to be crowned Englands Royall King: / From whence, ſhall Warwicke cut the Sea to France, / And aske the Ladie Bona for thy Queene: / So ſhalt thou ſinow both theſe Lands together, / And hauing France thy Friend, thou ſhalt not dread / The ſcattred Foe, that hopes to riſe againe: []
    • 1766, [Oliver Goldsmith], “The Same Subject Continued”, in The Vicar of Wakefield: [], volume II, Salisbury, Wiltshire: [] B. Collins, for F[rancis] Newbery, [], OCLC 938500648; reprinted London: Elliot Stock, 1885, OCLC 21416084, page 123:
      [I]t were to be wiſhed that we tried the restrictive arts of government, and made law the protector, but not the tyrant of the people. [] [W]e ſhould then find that wretches, now ſtuck up for long tortures, left luxury ſhould feel a momentary pang, might, if properly treated, ſerve to ſinew the ſtate in times of danger; []

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  1. ^ sineu, n.”, in MED Online, Ann Arbor, Mich.: University of Michigan, 2007, retrieved 20 July 2018.

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