Turkish Ablative Case: -den, -dan, -ten, -tan Explained
How the Turkish ablative suffix works — the vowel harmony that picks -den or -dan, the hardening to -ten or -tan after a voiceless consonant, and how the case marks source, material, cause, and the standard of comparison.
Ekle ·
The ablative marks where something comes from — "from", "out of", "off" — and it harmonises with the last vowel of the word it attaches to.
What the ablative does
Turkish has no separate word for "from". It has a suffix that does the same work, glued straight onto the noun: evden is "from home". One suffix, four spellings, and which one you use is decided by two rules that never conflict.
It answers the question nereden — from where?
Vowel harmony sets the suffix vowel
The suffix vowel copies the last vowel of the word. Front vowels — e, i, ö, ü — take -den, so ev becomes evden. The back vowels — a, o, u and dotless ı — take -dan, so okul becomes okuldan.
| Last vowel | After a voiced sound | After p ç t k f h s ş |
|---|---|---|
| e · i · ö · ü | -den | -ten |
| a · ı · o · u | -dan | -tan |
Consonant hardening after a voiceless sound
If the word ends in a voiceless consonant, the d of the suffix hardens to t. The voiceless consonants are p ç t k f h s ş, and learners remember them with the name Fıstıkçı Şahap, a pistachio seller whose name contains every one of them. An uçak ends in the voiceless k, so "from a plane" is uçaktan.
Both rules apply at once and independently: hardening chooses d or t, harmony chooses e or a. kitaptan ends in the voiceless p, so t, and its last vowel a is back, so a. işten ends in a voiceless sound, so t, and its last vowel is front, so e.
The four forms side by side
| Turkish | Parts | English |
|---|---|---|
| evden | ev + den | from home |
| okuldan | okul + dan | from school |
| kitaptan | kitap + tan | from the book |
| işten | iş + ten | from work |
Common wrong forms
- evten is wrong: ev ends in the voiced v, so nothing hardens — the form is evden.
- okulden is wrong: okul has the back vowel u, so harmony gives okuldan.
- kitapdan is wrong: kitap ends in the voiceless p, so the d hardens — the form is kitaptan.
Made of, and out of
The same "from" idea reaches past physical places. It names the material a thing is made of — tahtadan, "(made) of wood" — and the cause of a reaction — korkudan, "out of fear", the fear you are moving away from.
| Turkish | Parts | English |
|---|---|---|
| tahtadan | tahta + dan | (made) of wood |
| korkudan | korku + dan | out of fear |
Proper nouns take an apostrophe
The suffix separates from a proper noun with an apostrophe, and both rules still apply across it: İstanbul'dan, "from Istanbul".
| Turkish | Parts | English |
|---|---|---|
| İstanbul'dan | İstanbul + dan | from Istanbul |
The standard of comparison
The ablative also marks the standard of comparison — the yardstick you measure against, English "than". In benden büyük, "bigger than me", it is benden, "than me", that carries the comparison; büyük is just "big", and daha, "more", may be added for emphasis. The full comparative is a construction of its own; here the ablative supplies only the "than".
| Turkish | Parts | English |
|---|---|---|
| benden | ben + den | than me |
Frequently asked questions
- When is the ablative -den and when is it -dan?
- It depends on the last vowel of the noun. Front vowels — e, i, ö, ü — take -den, as in evden; back vowels — a, ı, o, u — take -dan, as in okuldan. After a voiceless consonant the d hardens, giving -ten or -tan.
- When does the ablative become -ten or -tan?
- After a voiceless consonant. If the noun ends in p ç t k f h s ş, the d hardens to t: kitaptan, işten. Otherwise it stays -den or -dan.
- What is the difference between -den and -de?
- The ablative answers nereden — "from where?" — and marks motion away from something: evden is "from home". The locative marks the opposite, staying put: evde is "at home".
- Why does Turkish use the ablative for 'than'?
- In a comparison the thing you measure against takes the ablative — the "from" case marks the baseline you move away from. benden büyük is "bigger than me", where benden means "than me" and daha, "more", may be added for emphasis. The ablative supplies only the "than".