If you go berserk, you go absolutely flipping mental, which I’m currently trying not to do while dealing with a 2,790-page PDF which crashes every two seconds.
‘Berserk’ actually has very old roots – turns out people have been getting furiously angry with PDFs (or the equivalent) for a very long time. It comes from ‘berserker’, the name of a type of Norse warrior who fought with superhuman, savage strength while in a sort of frenzied trance. They dressed in animal skins, usually bear. And that’s where the name comes from – in Old Norse, ber- meant ‘bear’ and serkr- meant ‘shirt’ or ‘skin’. The excellently named Snorri Sturluson, a 13th-century historian, interpreted the meaning as ‘bare-shirt’, speculating that berserkers went into battle in the nuddy (or at least topless). But sadly this has been largely discredited. (Snorri obviously had the same problem as lots of other English speakers who ask others to ‘bare with me’ which has made me angry many, many times.)
The earliest surviving reference to the word ‘berserker’ is in Haraldskvæði, a skaldic poem (one of the two kinds of Old Norse poetry, the other being Eddic poetry) composed by another excellently named individual, Thórbiörn Hornklofi, in the late ninth century. Here’s a little snippet for you:
I'll ask of the berserks, you tasters of blood,
Those intrepid heroes, how are they treated,
Those who wade out into battle?
Wolf-skinned they are called. In battle
They bear bloody shields.
Red with blood are their spears when they come to fight.
No mention of them being topless, sorry Snorri.
When I googled ‘famous berserkers’, one of the ones who came up was Ivar the Boneless. Sadly no one’s completely sure where the name comes from. It’s been suggested that he might have had a condition like osteogenesis imperfecta (also known as brittle bone disease), which makes the fact that he invaded both England and Ireland extra impressive. Another source says it refers to the fact that he couldn’t get it up, which is less so.
Also, he had a brother called Sigurd Snake-in-the-Eye who sounds super fun.
This one’s for you, Snorri