Chapter 6 of 8
Special Old English Letters: Thorn, Eth, Wynn, and Ash
Discover the extra letters used in Old English writing and how they eventually disappeared or were replaced in the move toward the modern English alphabet.
1. From Runes to a Modified Latin Alphabet
In earlier modules you saw how:
- The Roman (Latin) alphabet grew out of Greek and Etruscan writing.
- Early English (Anglo‑Saxon) was first written with runes (futhorc).
When Christian missionaries arrived in England (late 6th–7th centuries), they brought Latin books and the Latin alphabet. But Old English had sounds Latin did not.
So English scribes:
- Borrowed some shapes from runes.
- Adapted Latin letters.
- Created or reused a few special letters.
These extra letters are:
- þ (thorn)
- ð (eth)
- ƿ (wynn)
- æ (ash)
- ȝ (yogh – more common in Middle English but worth mentioning here)
In this module you will:
- Learn what sound each letter represented.
- See real Old English examples.
- Trace how each letter disappeared or was replaced as English moved toward the modern alphabet, especially once printing spread in the 15th–16th centuries.
Keep in mind: today (March 2026), none of these letters are used in standard modern English, but some survive in Icelandic (þ, ð) and in specialist or historical writing.
2. Thorn (þ): The Old English “th” Letter
Thorn is written þ (lowercase) and Þ (uppercase).
Sound
- It represented th‑sounds, like in:
- thin /θ/ (voiceless)
- this /ð/ (voiced)
- In Old English manuscripts, þ and ð often overlap in function; scribes did not always separate them by sound the way modern linguists do.
Origin
- Shape likely comes from the runic letter þ (thorn), adapted to fit Latin handwriting.
Old English examples
- þorn = thorn
- þæt = that
- oþer = other
In modern spelling, all of these now use th instead of þ.
Why þ disappeared
- Norman scribes (after 1066) were more used to Latin and French spellings.
- They preferred to write th instead of þ.
- Later, early printers in England (late 15th century) used type imported from the Continent that did not include þ.
- It was easier to set type with t + h.
By the 15th–16th centuries, th had almost completely replaced þ in English printing. This choice still shapes how we write today.
3. Spot the Thorn: Then vs. Now
Here is a short Old English sentence using thorn (þ). Read the modern version beneath it.
> Old English:
> Se cyning geseah þone mann.
>
> Modern English (spelling only updated):
> The king geseah thone mann.
>
> Modern English (fully translated):
> The king saw the man.
Look at the change:
- þone → thone (and then eventually the in later English)
Another example:
> Old English: Þæt hus is micel.
>
> Modern spelling: That hus is micel.
>
> Modern English: That house is big.
In both cases, anywhere you see þ in Old English, you can usually imagine th in modern spelling.
Quick check for yourself:
Try mentally replacing þ with th in this word:
> þing →
You should get thing.
4. Eth (ð): Another Way to Write “th”
Eth is written ð (lowercase) and Ð (uppercase).
Sound
- Like thorn, ð was used for th‑sounds.
- In modern linguistic descriptions, we often say:
- þ tends to represent /θ/ (as in thin),
- ð tends to represent /ð/ (as in this).
- But in actual Old English manuscripts, scribes often mixed them, so the contrast was not strict.
Origin
- Looks like a d with a cross‑stroke.
- Developed inside the insular (British/Irish) writing tradition.
Old English examples
- oðer = other
- mið = with
- ġeðencan = to think, consider (think and thank are related).
Thorn vs. Eth in manuscripts
- Many texts use both þ and ð.
- Choice often depends on position in the word, scribal habit, or visual balance, not just sound.
Why ð disappeared
The reasons are similar to thorn:
- Norman scribes and later printers preferred th.
- Continental typefaces did not support ð.
- By the time spelling began to stabilize (late Middle English), th had become the standard way to write these sounds.
Today:
- Modern English uses th, not ð.
- Modern Icelandic still uses both þ and ð, but with a clear sound difference: þ for /θ/, ð for /ð/.
5. Mini Practice: Thorn and Eth to Modern Spelling
Convert these Old English words into modern-style spellings, only updating þ and ð to th. Do not translate the whole word, just change the letters.
Write your answers on paper or in a notes app, then check yourself with the suggested answers below.
- oðer →
- mið þam →
- þæt ðing →
- seðe ("he who") →
Suggested answers (when you are ready):
- other (oðer → other)
- mith tham (mið þam → mith tham)
- In true modern English this would become with that, but for this exercise we only swap letters.
- that thing (þæt ðing → that thing)
- sethe (seðe → sethe)
Notice how th stands where þ and ð once did. This is exactly the historical change that shaped modern English spelling.
6. Wynn (ƿ): The Lost Letter for the “w” Sound
Wynn is written ƿ (lowercase) and Ƿ (uppercase).
Sound
- Represented the /w/ sound, like w in win or water.
Why use ƿ instead of “w”?
- The classical Latin alphabet did not have a separate w letter.
- Latin used V (which could represent both /u/ and /w/ in early Latin).
- English needed a clear way to show the /w/ sound.
- Scribes borrowed the runic letter wynn (ᚹ) and adapted its shape as ƿ.
Old English examples
- ƿe = we
- ƿord = word
- ƿater = water
How ƿ became “w”
- Over time, scribes began writing two v or u shapes together as “uu” to show /w/.
- This “double u” gradually became our modern letter w.
- By the 13th–14th centuries, w was replacing ƿ in most manuscripts.
- Early printers standardized w, because their typefaces supported it and not ƿ.
So wynn (ƿ) disappeared, but its sound is still very common in English. The letter w is literally a “double u” (or historically, double v) that took its place.
7. Wynn to W: Seeing the Change
Let’s look at a short example sentence and update only ƿ → w.
> Old English: ƿe sprecað Englisc.
>
> Step 1 – swap ƿ for w: we sprecað Englisc.
>
> Step 2 – modern spelling & translation: We speak English.
Another word list:
- ƿest → west
- ƿif → wif (later wife)
- ƿudu → wudu (later wood)
You can see how replacing ƿ with w is often enough to make the word look familiar.
Try it yourself:
Convert these by eye:
- ƿord →
- ƿinter →
You should get word and winter.
8. Ash (æ): A Vowel Between A and E
Ash is written æ (lowercase) and Æ (uppercase).
Sound
- In Old English, æ usually represented a front vowel somewhere between modern “a” in cat and “e” in bed.
- It is often transcribed as /æ/ in modern phonetic notation.
Origin
- Comes from a Latin ligature: a combination of a + e written as one letter.
- Old English scribes adopted it as a normal vowel letter, not just a fancy ligature.
Old English examples
- æppel = apple
- dæg = day
- stān vs. stæf (stone vs. staff – showing different vowels)
What happened to æ?
- During the Middle English period, the vowel system changed (the Great Vowel Shift came later, but changes started earlier).
- Spelling gradually moved away from æ toward a or e combinations.
- Printers in the late 15th and 16th centuries preferred plain letters (a, e) instead of æ.
Today:
- Standard modern English rarely uses æ.
- You might still see it:
- In Old English editions and textbooks.
- In some loanwords or names (e.g., Æsir in Norse studies).
- As a stylistic choice in brand names or typography, but not as a separate letter of the English alphabet.
Modern spellings of Old English æ words:
- æppel → apple
- dæg → day
- læran → learn
9. Yogh (ȝ): A Transitional Letter (Mainly Middle English)
Yogh is written ȝ (lowercase) and Ȝ (uppercase).
Although yogh is mainly a Middle English letter, it helps explain how we got some modern spellings, so we include it briefly.
Sound
Depending on position and dialect, ȝ could represent:
- A y‑sound /j/ (as in yes),
- A gh‑sound (a velar or palatal fricative, like the ch in Scottish loch),
- Sometimes a g‑sound /g/.
Examples (mostly Middle English)
- niȝt → night
- ȝe → ye / you
What happened to ȝ?
- Its shape looked similar to the long s (ſ) and the number 3, which caused confusion.
- Norman scribes and later printers tended to replace ȝ with:
- g (e.g., ȝe → ye/you),
- y,
- gh (e.g., niȝt → night).
Today, ȝ is gone from standard English, but it explains why we still write gh in words like night and laugh, even though the original sound has disappeared in most modern accents.
10. Quick Check: Matching Letters to Sounds
Choose the best match for each special Old English letter.
Which pairing is MOST accurate for Old English letters and the sounds they commonly represented?
- þ / ð = th‑sounds, ƿ = w‑sound, æ = a/æ‑vowel
- þ / ð = p‑sounds, ƿ = v‑sound, æ = u‑vowel
- þ / ð = s‑sounds, ƿ = y‑sound, æ = o‑vowel
Show Answer
Answer: A) þ / ð = th‑sounds, ƿ = w‑sound, æ = a/æ‑vowel
In Old English, thorn (þ) and eth (ð) both wrote th‑sounds; wynn (ƿ) wrote the w‑sound; ash (æ) wrote a front vowel /æ/ (similar to the vowel in modern 'cat' for many speakers). The other options mismatch letters and sounds.
11. Thought Exercise: Why Did These Letters Disappear?
Think about the historical forces you have seen so far:
- Norman Conquest (1066) and the influence of French‑speaking scribes.
- The growing use of Latin and French as written languages in England.
- The arrival of printing presses in England in the late 15th century.
- The use of Continental typefaces that lacked special English letters like þ, ð, and ƿ.
Task:
- In 3–4 bullet points, explain why English spelling moved from:
- þ, ð → th
- ƿ → w
- æ → a or e combinations
- Then write one sentence predicting how technology today (keyboards, Unicode, spell‑checkers) might affect which letters and spellings survive in the future.
Use these prompts to guide your notes (you do not need to submit them):
- Which people controlled most of the writing and copying of texts?
- What letters did their alphabets and printing fonts already have?
- Why might writers avoid characters that are hard to type or print?
This reflection helps you connect historical spelling changes with modern issues like keyboard layouts and digital fonts.
12. Flashcard Review: Special Old English Letters
Flip through these cards to review the key letters and ideas from this module.
- þ (thorn)
- Old English letter for th‑sounds (as in 'thin' and 'this'). Largely replaced by 'th' after the Middle English period, especially with the spread of printing.
- ð (eth)
- Old English letter, visually like a crossed 'd', also used for th‑sounds. Disappeared from English spelling in favor of 'th'; still used in modern Icelandic.
- ƿ (wynn)
- Letter for the /w/ sound in Old English, borrowed from runes. Replaced by 'w' (originally written as 'uu', i.e., double u/v).
- æ (ash)
- Vowel letter representing a front /æ/ sound in Old English (similar to the vowel in 'cat'). Later replaced by spellings with 'a' or 'e'; survives mainly in historical and specialist contexts.
- ȝ (yogh)
- Letter mainly used in Middle English for sounds like /j/, /g/, and velar fricatives. Replaced by 'g', 'y', and 'gh' in modern spelling (e.g., 'niȝt' → 'night').
- Why th instead of þ and ð?
- Norman scribes and later printers were used to Latin/French spelling and types that included 't' and 'h' but not þ or ð. 'th' became the practical, standardized choice.
- Why did ƿ (wynn) vanish?
- Scribes increasingly wrote 'uu' (double u/v) for /w/, which solidified into the letter 'w'. Printers supported 'w', not ƿ, so ƿ fell out of use.
- Role of printing in spelling change
- Early printers used Continental typefaces that lacked special English letters. They favored spellings using the basic Latin alphabet, helping to fix modern forms like 'th' and 'w'.
Key Terms
- digraph
- A pair of letters used together to represent a single sound, such as 'th' or 'sh'.
- futhorc
- The runic alphabet used for writing early forms of English before the widespread adoption of the Latin alphabet.
- ash (æ)
- Vowel letter in Old English representing a front /æ/ sound. Later replaced by spellings with 'a' or 'e' in modern English.
- eth (ð)
- Old English letter, similar in function to thorn, used for th‑sounds. Replaced by 'th' in modern English; still used in Icelandic.
- ligature
- A single written symbol formed by joining two letters, such as æ from a + e.
- wynn (ƿ)
- Letter in Old English representing the /w/ sound, derived from a rune. Replaced by the modern letter 'w'.
- yogh (ȝ)
- Letter used mainly in Middle English for several consonant sounds. Later replaced by 'g', 'y', or 'gh' in modern spelling.
- thorn (þ)
- Old English letter used for th‑sounds. Gradually replaced by the digraph 'th' in later English.
- insular script
- A style of writing developed in the British Isles during the early Middle Ages, used in Old English and Irish manuscripts.
- Great Vowel Shift
- A major series of changes in the pronunciation of long vowels in English, mainly between the 15th and 17th centuries, which affected how words are pronounced today but not always how they are spelled.