The Seax: The Blade That Named the Saxons — History, Types, and the Beagnoth Runes
Ask most people to name a Viking weapon and they'll say sword or axe. Almost nobody says seax — and yet it's the one blade that was carried by nearly everyone, warrior or not, that gave an entire people their name, and that survived in continuous use for roughly six centuries.
The Blade That Named a People
"Seax" comes from the Old English sēax, simply meaning "knife," with the exact same root showing up as sax in Old Norse and sahs in Old High German. Here's the part most people don't know: many historians believe the word "Saxon" itself derives from this blade — roughly, "people of the seax." The echo runs even further than that. The Welsh word for an English person, Saesneg, and the Scottish Sassenach, both trace back to the same root: centuries of neighboring peoples identifying the Saxons by the knife they carried, long after most had forgotten why.
Origins: Older Than the Viking Age Itself
The seax predates the Vikings by several centuries. The earliest recognizable form, sometimes called the Schmalsax ("narrow sax") in continental scholarship, emerges from Germanic tribal knife traditions during the Merovingian period, roughly the 5th and 6th centuries CE — well before Scandinavia's Viking Age formally begins. From there, blades gradually lengthened across the 6th through 8th centuries. A genuine turning point came at the end of the 7th century, when true long seaxes appear: narrower and lighter than their broader predecessors, initially carried alongside a double-edged sword as a secondary sidearm. From the 7th century onward, in much of the Germanic world, the seax graduated from sidearm to primary edged weapon, standing alongside the francisca throwing axe as the era's defining arms.
A Typology Across Centuries
"Seax" was never one fixed shape — it's a category spanning roughly six centuries of regional variation, and sizes ranged from small utility knives with 10–15 centimeter blades up to full fighting weapons approaching 60 centimeters, blurring the line between knife and short sword entirely. Several recognized forms recur across the archaeological record:
- Narrow seax — among the earliest and most common types, often decorated with braided bands or engraved snake motifs, frequently fitted with metal bolsters and pommels. Both edge and spine curve toward a tip usually set above the blade's centerline.
- Light broad seax — similar in profile to the narrow seax but generally undecorated apart from simple parallel-line patterns, and typically lacking the narrow seax's metal hilt furniture.
- Long seax (langseax) — the genuinely sword-length form that emerged at the close of the 7th century, carried in its own belt-slung scabbard, effectively bridging the gap between long knife and short sword.
- Broken-back seax — the most visually distinctive form, with a sharp angled break in the spine near the tip, especially common in 8th and 9th century Anglo-Saxon and Frankish contexts.
The Seax That Speaks: Beagnoth's Blade
The single most important surviving seax is the Seax of Beagnoth, also known as the Thames Scramasax, now held in Room 41 of the British Museum. A laborer named Henry Briggs recovered it from the River Thames at Battersea in 1857. At 72.1 centimeters long and inlaid with copper, brass, and silver wire, it's unmistakably a prestige weapon — but what makes it genuinely unique is what's inscribed on its blade: the only known complete surviving example of the 28-letter Anglo-Saxon runic alphabet, the futhorc, running alongside the name "Beagnoth" in runes. Scholars believe the name marks either the weapon's owner or the smith who forged it, and that the runic inscription itself was thought to carry protective or magical significance — a belief echoed directly in Beowulf, where a sword hilt bears its owner's name in runes, and in Old Norse poetry describing a valkyrie teaching a hero to carve victory-runes onto his blade.
The blade's older nickname, "scramasax," actually turns out to be a bit of a historical accident. It comes from a single, obscure use of the Old Frankish word scrâmasahs in Gregory of Tours' History of the Franks, and 19th-century scholars, assuming the weapon type was Frankish in origin, initially even tried reading Beagnoth's runes as an Old Frankish name. Modern scholarship has since concluded that Anglo-Saxon seaxes were a native English tradition, not a continental import, and now generally prefers the more accurate term "long seax" over "scramasax" entirely.
Why the Seax Faded
The seax's decline wasn't really about the weapon becoming obsolete on its own merits — it was politics. In the Frankish Empire, Carolingian military reforms pushed toward centralized, standardized production of double-edged swords, and the seax was gradually squeezed out of Frankish military tradition by the late 8th century as a direct result. But that centralizing push never reached the empire's peripheries in the same way — which is exactly why the seax kept thriving in Anglo-Saxon England and Viking Scandinavia for another two centuries, right through the 10th and into the 11th century, even as it was disappearing from the continent that had originally given it prominence.
Not Just a Man's Weapon
Seax fragments have turned up in graves belonging to both men and women, including a Viking-era woman's burial at Adwick-le-Street in South Yorkshire. This lines up with something we've touched on in other posts — Norse material culture repeatedly shows women holding a more active, armed role than popular imagination usually grants them.
The Sword's Everyday Understudy
We've written elsewhere about how the sword was actually the rare, expensive weapon of Norse society, while the axe and seax were what most people genuinely carried day to day. The seax's real edge, literally and figuratively, was versatility: the same blade that butchered meat, whittled wood, and handled everyday tasks could also be drawn as a weapon, and sagas describe it doing exactly that as a last resort — pulled in close-quarters combat when a warrior's spear or axe was lost, broken, or too unwieldy for a fight that had collapsed into a desperate grapple.
What We Carry
Our seax lineup spans several of these historical types: the Broad Seax (Scandinavia, 9th century), the Jelling-style Langseax, our Long Seax with Type G Hilt, and the Transitional Seax in both bone and horn grip options, plus the Bone Curved Broad Seax.
We also carry a piece from a later period worth being upfront about: our Oakeshott Type XVa.3 Arming Dagger is modeled on a 15th-century find from the Castillon Hoard — genuinely historical and beautifully made, but medieval, not Viking. If Viking-era authenticity specifically matters for your kit, the seaxes above are the historically correct choice; the arming dagger belongs to a different century entirely.
