If you have ever wondered why هذا is spelled without an alef between the ه and ذ even though you clearly pronounce a long /aa/ there, the answer is the dagger alef (الألف الخنجرية). It is a historical alef that was dropped from everyday script centuries ago to speed up writing, but the pronunciation was never lost. The alef is still there, it is just invisible unless the word is written with full diacritics.
What Is the Dagger Alef?
The dagger alef (ٰ, Unicode U+0670) is a small vertical stroke written above a letter to indicate a long /aa/ vowel that is not written as a full alef. It appears only in fully vowelled Quran text, classical scholarly editions, and some pedagogical materials. In everyday Arabic writing, it is omitted entirely, and the reader must know which words contain it.
The Most Common Words with a Hidden Dagger Alef
These are the words where the dagger alef causes the most spelling mistakes, because writers who do not know about it try to "fix" the perceived missing alef by adding one.
| Word | ❌ Wrong spelling | ✅ Correct spelling | Meaning |
|---|---|---|---|
| هذا | هاذا | هذا | This (masc.) |
| هذه | هاذه | هذه | This (fem.) |
| ذلك | ذالك | ذلك | That (masc.) |
| الله | الإله / الاله | الله | God |
| الرحمن | الرحمان | الرحمن | The Most Gracious |
| لكن | لاكن | لكن | But / however |
| أنا | أنا (✓ correct as-is) | أنا | I (the alef here is written) |
| ثلاثة | ثلاثه | ثلاثة | Three (the alef here is written) |
Where the Dagger Alef Appears in the Quran
In Quran text with full diacritics, the dagger alef is written explicitly above the letter that carries it. This allows readers to see exactly where the hidden long vowel is.
| Quran spelling | Everyday spelling | Where the dagger alef is |
|---|---|---|
| هَٰذَا | هذا | Above ه |
| ذَٰلِكَ | ذلك | Above ذ |
| ٱلرَّحْمَٰنِ | الرحمن | Above م |
| لَٰكِن | لكن | Above ل |
Other Words with Irregular Alef Spelling
Beyond the dagger alef cases, Arabic has other words where the alef is spelled differently from how it sounds. These are not dagger alef cases, they are simply historical orthographic conventions that must be memorised.
| Word | Note |
|---|---|
| الصلاة | Written with alef after ص, pronounced as laa (not laah) |
| الزكاة | Written with alef after ك |
| طه | Name of a surah, ط carries a dagger alef in Quran text |
The Spelling Rule to Memorise
For everyday writing, the simplest approach is to memorise the most frequent dagger alef words as a closed list and never add an alef to them. The principle is: if the word is traditionally spelled without a visible alef, do not add one. Trust the shape of the word, not your instinct to "fix" it.
Frequently Asked Questions
Why is the alef missing from هذا and ذلك?
These words contain a dagger alef, a historical long vowel dropped from everyday writing centuries ago as a scribal shorthand. The vowel is still pronounced but no longer written. Native readers recognise these words by shape.
Is it wrong to add a regular alef to words like الرحمن and هذا?
Yes. Writing الرحمان or هاذا adds a visible alef that should not be there. These words are spelled without a written alef because the alef is the invisible dagger alef. Adding one is a spelling error.