ᚑ

Onn

ash tree

Something that carries you and can also cut you

Ogham glyphs are shown in Unicode, laid out left to right. On a standing stone the letters run bottom to top along the arris, so this row is a convenience rather than a facsimile.

Sound
o /o/
Position
17
Group
Aicme Ailme
Root meaning
onn, ash — a genuine tree name, uniquely discarded by the glossators
Medieval tree gloss
furze or gorse (imposed, despite the name already being a tree)
Unicode
U+1691
Timing
On the move
Yes / No
Yes, with care

Upright

  • ash
  • a spear shaft
  • wheels
  • what carries
  • a wounding
  • warrior provision
  • kinship with birch
  • hard use

In the rune poems

congnaid ech

wounder of horses

Bríatharogam Morainn mac Moín · Onn
lúth fían

sustenance of warrior bands

Bríatharogam Maic ind Óc · Onn
bráthair bethi

brother of birch

Bríatharogam Con Culainn · Onn

The one they didn't have to force

This is the strangest case in the whole alphabet, and it is strange in the opposite direction from all the others.

Everywhere else, the medieval glossators took a name meaning an ingot, a field, redness or terror and forced a tree onto it. Here they had a name that already was a tree — Old Irish onn means ash — and they assigned furze, aiten, instead.

They did not need to do anything. The name was cooperating. And they overrode it.

That single fact tells you more about the tree tradition than any of the strained cases do. It shows the list was not built by working carefully from etymology and occasionally reaching. It was assembled patchily, from different sources, at different times, by people who were not checking each other — and somewhere in that process a genuine ash got displaced by a gorse bush and nobody noticed.

It also means Ogham ends up with two ash claims. Nin, which means a fork, was glossed as ash. Onn, which means ash, was not.

Wounder of horses

Congnaid ech is the hardest of the three and the most argued.

One reading takes it to the ash directly: ash is the spear-wood of northern Europe, straight-grained, shock-resistant and flexible enough not to shatter. A spear wounds horses, and cavalry against spearmen is a specific and bloody encounter.

A second reading connects it to furze, which supports the gloss — gorse is viciously spined and a horse pushed through it comes out cut. That may be exactly why the glossators reached for furze in the first place, working backwards from this kenning rather than from the name.

A third takes congnaid as relating to horse-gear or the wheel: ash was the standard wood for chariot and cart parts, and for tool handles, precisely because it takes impact without splitting.

Lúth fían, sustenance of warrior bands, fits the spear and the fían reading. Bráthair bethi, brother of birch, is a straightforward statement of kinship between two trees — and it is one of the clearest signs that the composer of that list had a tree in mind for this letter, whatever the Auraicept later decided.

Ash across two alphabets

Ash is one of the few trees that carries a letter in both Ogham and the Germanic runes, and the two traditions read it almost identically.

The Anglo-Saxon rune Æsc is named for the ash, and its Old English stanza describes a tree that is exceedingly tall, dear to men, firm on its base, and holds its place though many men attack it. That last clause is usually read as the poem sliding from the tree to the spear made from it, since Old English æsc means both — a spear held in a shield-wall standing firm while it is fought.

Onn's lúth fían, sustenance of warrior bands, is the same observation from the Irish side.

The two alphabets are unrelated. Neither borrowed from the other. Both independently attached a letter to ash and both immediately thought about weapons, because ash is what you make a spear shaft out of and everybody in both places knew it.

In reading

Onn is the material that carries and cuts.

Ash is the wood of shafts, handles, wheels and axles — the things that transmit force from a person to the world. It is chosen for exactly that: it flexes under load and returns, and it does not shatter. In a spread Onn marks the means of action: the tool, the vehicle, the arrangement through which someone's effort is actually applied.

Congnaid ech keeps a warning attached. The same qualities that make ash a good shaft make it a good spear, and the letter's most arresting kenning is about injury to an animal that was carrying somebody. Onn can mark a means that is damaging what conveys it.

Bráthair bethi gives a softer third reading: kinship, and specifically a pairing of two things of the same kind. Birch was the first letter of the alphabet, and this letter reaches back to it.

Modern sets give furze or gorse, with meanings of gathering, collection and hope. That follows a gloss that overwrote a perfectly good tree name.

Questions to sit with

  • What is the means by which your effort actually reaches the world?
  • Is the thing carrying you being damaged by carrying you?
  • They had the right answer and picked another one. Where are you overriding something that was already working?

Frequently asked questions

Ash. Old Irish onn is a genuine tree name, which makes this the strangest case in the alphabet: the medieval glossators assigned furze instead, overriding a name that was already cooperating with their scheme.

Nobody knows, and that is the point. It shows the tree list was assembled patchily, from different sources at different times, by people who were not checking each other. Ogham ends up with two ash claims: Nin, which means a fork, was glossed as ash, and Onn, which means ash, was not.

It is the most argued kenning here. It may point at ash as spear-wood, since a spear wounds horses. It may point at gorse, which is viciously spined and cuts a horse pushed through it — which could be why the glossators reached for furze in the first place. Or it may relate to chariot and cart parts, which were ash.

Not by descent — the alphabets are unrelated and neither borrowed from the other. But both independently gave a letter to ash and both immediately thought about weapons. The Old English stanza slides from the tree to the spear made from it; Onn's kenning calls it the sustenance of warrior bands.

The material that carries and cuts. Ash is the wood of shafts, handles, wheels and axles — the things that transmit force from a person to the world — so it marks the means by which effort is actually applied. The horse kenning keeps a warning attached: a means can damage what conveys it.

Ogham

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