|Place of origin||Scotland|
|In service||ca. 1400—1700|
|Weight||≈2.2–2.8 kg (4.9–6.2 lb)|
|Length||≈120–140 cm (47–55 in)|
|Blade length||≈100–115 cm (39–45 in)|
|Hilt type||Two-handed cruciform, with pommel|
The term claymore (//; from Scottish Gaelic claidheamh mòr, "great sword") refers to the Scottish variant of the late medieval two-handed longsword. It is characterised as having a cross hilt of forward-sloping quillons with quatrefoil terminations. It was in use from the 15th to 17th centuries.
The term claymore is an anglicisation of the Gaelic claidheamh mòr "great sword", first attested in 1772 (as Cly-more) with the gloss "great two-handed sword". The sense "basket-hilted sword" is contemporaneous, attested in 1773 as "The broad-sword now used [...] called the Claymore, (i.e. the great sword)." OED observes that the latter usage is "inexact, but very common". The 1911 Encyclopædia Britannica likewise judged that the term is "wrongly" applied to the basket-hilted sword.
Authors arguing that the basket-hilted sword is "incorrectly" called claymore have been known to suggest that claybeg (from a purported Gaelic claidheamh beag "small sword") should be used instead.
This does not parallel Scottish Gaelic usage. According to the Gaelic Dictionary by R. A. Armstrong (1825), claidheamh mòr translates to "broadsword", and claidheamh dà làimh to "two-handed sword", while claidheamh beag is given as a translation of "Bilbo".
The term "claymore" became part of vocabulary of the Victorian era sentimental or Romanticist "retro-Jacobite" literature and poetry such as the Skye Boat Song (1870).
Other contemporary Gaelic descriptives of swords include claidheamh cuil or back sword, referring to a single-edged sword with a flat "spine" (not one worn on the back, a common misinterpretation), the claidheamh crom or crooked sword, which could describe either a typical sabre style blade (such as that worn by Archibald Campbell, 1st Duke of Argyll, in the painting by Medina) or a scimitar style blade known as a "Turcael" ("Turkish" blade) such as that brandished by Alasdair Mor, the Champion of Clan Grant, in the c. 1715 portrait by Waitt, or the claidheamh caol or narrow sword, usually describing a rapier or small-sword.
The term claybeg, purportedly from Scots Gaelic claidheamh beag meaning "little sword" is not seen in clan-era Gaelic song or poetry, 'Dwelly's' [ibid.], or other authorities, and seems to be a fairly recent invention.
Two-handed (Highland) claymore
The two-handed claymore was a large sword used in the late Medieval and early modern periods. It was used in the constant clan warfare and border fights with the English from circa 1400 to 1700. Although Claymores existed as far back as the Wars of Scottish Independence they were smaller and few had the typical quatrefoil design (as can be seen on the Great Seal of John Balliol King of Scots). The last known battle in which it is considered to have been used in a significant number was the Battle of Killiecrankie in 1689. It was somewhat smaller than other two-handed swords of the era. The two-handed claymore seems to be an offshoot of Early Scottish medieval longswords (similar to the Espee de Guerre or Grete war sword) which had developed a distinctive style of a cross-hilt with forward-angled arms that ended in spatulate swellings.The lobed pommels on earlier swords were inspired by the Viking style. The spatulate swellings were later frequently made in a quatrefoil design.
The average claymore ran about 140 cm (55 in) in overall length, with a 33 cm (13 in) grip, 107 cm (42 in) blade, and a weight of approximately 5.5 lb (2.5 kg).
Fairly uniform in style, the sword was set with a wheel pommel often capped by a crescent-shaped nut and a guard with straight, forward-sloping arms ending in quatrefoils, and langets running down the centre of the blade from the guard. Another common style of two-handed claymore (though lesser known today) was the "clamshell hilted" claymore. It had a crossguard that consisted of two downward-curving arms and two large, round, concave plates that protected the foregrip. It was so named because the round guards resembled an open clam.
The largest claymore on record is a sword measuring 7 feet 6 inches (2.24 m) and weighing 23 pounds (10 kg). The claymore was wielded by a 15th-century Scottish giant of unknown name and origin, though the individual is believed to have been a member of the Maxwell Clan.
- "claymore". Oxford English Dictionary, 2nd ed., 1989.  (subscription required)
- Thomas Pennant, A map of Scotland, the Hebrides, and part of England, cited after OED. See also Alexander Robert Ulysses Lockmore (1778). Annual Register Vol. 23. London.[clarification needed]
- James Boswell, The journal of a tour to the Hebrides, with Samuel Johnson, cited after OED.
- Chisholm 1911, p. 474.
- so Nick Evangelista, The encyclopedia of the sword, 1995, ISBN 978-0-313-27896-9, p. 113. The suggestion appears as early as 1835, in a letter to the editor of The United service magazine p. 109: "... the claybeg or Andrew Ferrara, now worn by the officers and sergeants of the Highland corps, and which has usurped the venerable name of the ancient Scottish weapon".
- A Gaelic Dictionary, p. 120. see also Wagner, Paul; Christopher Thompson (2005). "The words "claymore" and "broadsword"". SPADA (Highland Village, Texas: The Chivalry Bookshelf) 2: 111–117.. Dwelly's Illustrated Gaelic to English Dictionary (Gairm Publications, Glasgow, 1988, p. 202); 'Culloden - The Swords and the Sorrows (The National Trust for Scotland, Glasgow, 1996).
- swords and sabres harvey J S withers
- Ewart Oakeshott= Records of the Medieval Sword pg.117 BOYDELL&BREWER Ltd
- Highland grave slab national museum of Scotland.
- Dwelly's Illustrated Gaelic to English Dictionary (Gairm Publications, Glasgow, 1988, p. 202)
- Chisholm, Hugh, ed. (1911). "Claymore". Encyclopædia Britannica 6 (11th ed.). Cambridge University Press. p. 474