View source for Engineering:Tenterhook

{{Short description|Hooked nail for use in a tenterframe}}
[[File:H. Barns & Sons - trade catalogue -1822 - 03 (Tenter Hook).jpg|thumb|Tenter hook in an 1822 trade catalogue, published by H. Barns & Sons, of Birmingham, England]]
[[File:Tenter Frames, Otterburn Mill, Northumberland.jpg|thumb|Tenterhooks on what may be the world's last remaining 18th-century tenter frames at Otterburn Mill, Northumberland.]]

'''Tenterhooks''' or '''tenter hooks''' are [[Engineering:Hook|hook]]ed nails in a device called a '''''tenter'''''. Tenters were wooden frames which were used as far back as the 14th century in the process of making woollen cloth. They are now superseded by stenter pins.

The phrase "'''''on tenterhooks'''''" has become a metaphor for nervous anticipation.

== Cloth-making ==

After a piece of cloth was woven, it still contained [[Chemistry:Lanolin|oil]] and dirt from the fleece. A craftsman called a fuller (also called a tucker or wa(u)lker, in [[Social:Scots language|Scots]], from the word 'Walker', as used in most of the UK mainland), cleaned the woollen cloth in a fulling mill, and then had to dry it carefully, to prevent the woollen fabric from shrinking. To prevent this shrinkage, the fuller would place the wet cloth on a large wooden frame, called a tenter ({{ety|la|tendere|to stretch}}), and leave it to dry outdoors. The lengths of wet cloth were stretched on the tenter using tenterhooks (hooked nails whose long shank was driven into the wood) all around the perimeter of the frame to which the cloth's edges (selvedges) were fixed, so that as it dried the cloth would retain its shape and size.<ref>{{cite web |url=http://trowbridgemuseum.co.uk/fulling-and-tentering/ |title=Fulling and Tentering « Trowbridge Museum |website=trowbridgemuseum.co.uk}}</ref> 

There were tentergrounds (or tenter-fields), large open spaces full of tenters, wherever cloth was made, and as a result the word "tenter" is found in place names throughout the United Kingdom and its empire, for example several streets in Spitalfields, [[Place:London|London]]<ref>Approximate centroid of North-, South-, West-, and East- Tenter Street, and Tenter Passage, in Spitalfields, London: {{Coord|51.51251|-0.07159|region:GB_type:landmark}}</ref> and Tenterfield House in Haddington, East Lothian, Scotland, which in turn gave its name to Tenterfield in New South Wales, Australia.<ref name="ELC">{{cite web |title=Town blaze makes news Down Under |url=https://www.eastlothiancourier.com/news/13556053.town-blaze-makes-news-down-under/ |website=East Lothian Courier |access-date=4 March 2019 |date=21 July 2011 |language=en}}</ref>

The word ''tenter'' is still used today to refer to production line machinery employed to stretch [[Chemistry:Polyester|polyester]] films and similar fabrics.{{citation needed|date=January 2020}} The spelling '''''stenter''''' is also found.

== Metaphor ==

By the mid-18th century, the phrase ''on tenterhooks'' came to mean being in a state of tension, uneasiness, [[Medicine:Anxiety|anxiety]], or suspense, i.e., figuratively stretched like the cloth on the tenter.<ref>{{cite web|url=http://www.worldwidewords.org/qa/qa-ont1.htm|title=World Wide Words: On tenterhooks|website=World Wide Words}}</ref>

John Ford's 1633 play ''Broken Heart'' contains the lines: "There is no faith in woman. Passion, O, be contain'd! My very heart-strings Are on the tenters."<ref>{{cite web|url=http://www.luminarium.org/editions/broken.htm#5.4|title=John Ford. The Broken Heart.|website=www.luminarium.org}}</ref>

In 1690 the periodical ''The General History of Europe'' used the term in the modern sense: "The mischief is, they will not meet again these two years, so that all business must hang upon the tenterhooks till then."<ref>The general history of Europe, London [England] 1688–1693, republished in Early English newspapers, Microfilm, Woodbridge, Conn. Primary Source Microfilm, an imprint of Gale Group, 2000; reel 1,364.</ref>

In 1826, English periodical ''Monthly magazine or British register of literature, sciences, and the belles-lettres'' contained the line "I hope (though the wish is a cruel one) that my fair readers, if any such readers have deigned to follow me thus far, are on tenterhooks to know to whom the prize was adjudged."<ref>[http://grammarist.com/usage/on-tenterhooks/ Grammarist], retrieved 14 February 2014</ref><ref>List of 19th-century British periodicals</ref> In a letter to his wife the same year, American educator Francis Wayland (waiting for his promised appointment as President of [[Organization:Brown University|Brown University]]) wrote "I was never so much on tenter hooks before."<ref>Roelker, William G. [http://www.americanantiquarian.org/proceedings/44807076.pdf "Francis Wayland A neglected pioneer of higher education"] ''Proceedings of the American Antiquarian Society'', '''53''' (1):27–78. 1944. retrieved 14 February 2014</ref>

The misuse of tender hooks instead of tenter hooks is one of the most common mistakes in the English language according to a survey in 2017. <ref>{{Cite web |date=2017-12-12 |title=The 30 most misused phrases in the English language |url=https://www.independent.co.uk/life-style/most-misused-phrases-words-english-language-uk-revealed-to-be-pacific-a8098791.html |access-date=2023-12-30 |website=The Independent |language=en}}</ref>

== References ==
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{{fabric}}

[[Category:Metalworking]]

{{Sourceattribution|Tenterhook}}