Ébad
the KOI formula; a salmon in the later tradition
The mark that says a person is buried here
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
- ea originally /k/ or /x/; later the diphthong ea
- Position
- 21
- Group
- The forfeda
- Root meaning
- uncertain; the salmon reading belongs to the manuscript period
- Medieval tree gloss
- aspen (imposed, to keep the tree scheme intact)
- Unicode
- U+1695
- Timing
- After a death
- Yes / No
- The matter is closed
Upright
- here lies
- a burial marker
- a memorial
- what is recorded
- a salmon
- swimming
- the formal statement
- closure
In the rune poems
snámchaín feda
fair-swimming letter
caínem éco
fairest of fish
lúad sáethaig
the manuscript readings for this letter vary
The forfeda, and why they exist
The primary twenty letters are generated by a rule: a position relative to the stemline, and a count of one to five. That rule produces exactly twenty characters and cannot produce a twenty-first.
When the language changed and Latin arrived, more letters were needed. Irish had lost Proto-Indo-European *p entirely, so there was no P at all — a serious problem once names like Patricius and words like pascha were in circulation. New diphthongs had developed. And scribes wanted correspondences for Latin letters their alphabet lacked.
So a fifth group was engineered: the forfeda, extra letters. Because the counted-stroke system had nowhere to go, they were built as composite shapes — crossings, loops, lattices.
That design difference has a consequence. Composite shapes are much harder to cut into a stone arris than counted strokes, and the forfeda are correspondingly almost absent from monuments. With one exception.
The exception
Ébad is an X crossing the stemline, and it is the only forfid that appears on orthodox stones with any regularity.
It appears there for one purpose. A group of inscriptions carry the word KOI, written ᚕᚑᚔ, and it functions as the Irish equivalent of Latin hic iacet — here lies.
The word is generally linked to Latin cis, on this side, or read as a demonstrative. On these stones Ébad carries a consonantal value, /k/ or /x/, not the vowel-diphthong it was later assigned.
That is the whole epigraphic career of the letter, and it is a striking one. A supplementary character, invented outside the elegant twenty-letter system, earning its place on stone because it was needed to say that a specific person is buried in this spot.
It also tells you what the stones are. The corpus is memorial and territorial, and KOI is the moment a memorial says so explicitly.
How it became a salmon
In the manuscript period the forfeda were reorganised, and the reorganisation was aggressive.
Scribes wanted a fifth aicme that matched the shape of the fourth — a clean series of five vowels. So the forfeda, which had been created for a mixed bag of consonants and diphthongs, were stripped of their original values and reassigned as diphthongs. Ébad, which had carried /k/ on real stones, became ea.
With a new value came a new interpretation of the name. Ea was connected to éo, salmon, and the kennings follow: snámchaín feda, fair-swimming letter, and caínem éco, fairest of fish. They celebrate a fish, not a tree and not a burial formula.
The tree tradition then had to catch up, and assigned aspen, crithach — the same tree given to Edad, which tells you how much slack was left in the system by this point.
So the letter has three layers: a consonant on stones, a diphthong in manuscripts, and a tree in the Auraicept. Only the first was ever used to write anything.
In reading
Ébad is the formal statement that something is finished and recorded.
KOI is not grief and it is not a eulogy. It is the flat, functional part of a memorial — the clause that fixes a fact to a place. Here lies. In a spread the letter marks a matter that has been closed and, importantly, marked as closed where others can see it. A record, an announcement, a public acknowledgement.
That is a different idea from an ending. Plenty of things end without anybody putting up a stone.
The salmon layer is available if you want it, and it is honest to say it is the later layer. The salmon in Irish tradition is the fish of knowledge, and snámchaín feda is a graceful phrase. Used that way Ébad reads as knowledge moving easily, or something travelling well through a medium that would stop other things.
Both are legitimate. The first is what the letter did; the second is what scribes made of it afterwards.
Questions to sit with
- What has finished that nobody has formally acknowledged?
- Is this an ending, or an ending that has been put on record? They are not the same.
- The letter earned its place by being needed. What in your life is there because it was genuinely required?
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