-dir

From Proto-Turkic *tur- (“to stand”).^[1]

-dir

1. Third-person singular present simple copula (used suppletively in place of *imək):
   1. [he/she/it] is

Inherited from Proto-Turkic *-tur. Cognate with Kazakh -дір (-dır).

-dir

1. Causative suffix.^[2]

   ‎gəzmək (“to walk”) + ‎-dir → ‎gəzdirmək (“to take out for a walk”)

   ‎bilmək (“to know”) + ‎-dir → ‎bildirmək (“to inform”)

• IPA^(key): /diɾ/

Inherited from Old Anatolian Turkish طورمق (durmaq), ـدر (-dur, -dür), from Proto-Turkic *tur-. Compare Turkish durmak, -dir; Azerbaijani durmaq, -dir; and durmaa.

-dir

1. (copulative) Third-person singular present simple copula, is

• Usually dropped during colloquial speech; mostly used to emphasize.

Ultimately from Proto-Turkic *-tur

-dir

1. forms causative verbs

• N. A Baskakov, editor (1972), “-дир”, in Gagauzsko-Russko-Moldavskij Slovarʹ [Gagauz-Russian-Moldovan Dictionary], Moskva: Izdatelʹstvo Sovetskaja Enciklopedija, →ISBN, page 635

• IPA^(key): /diɾ/

From Ottoman Turkish ـدر (-dir), from Proto-Turkic *tur- (“to stand”). Cognate with Turkish durmak (“to stand, to stop”).

-dir

2. (auxiliary, defective, + noun) is

   Bu benim evimdir. ― This is my house.

4. (auxiliary, defective, + verb) expresses an assumption

   Ben de geliyorumdur herhalde. ― I am probably coming to.

   Kesin yalan söylüyorumdur. ― Sure, I'm lying.

   Unutmuşumdur. ― I must have forgotten.

From Proto-Turkic *-tur (causative suffix).

-dir

2. Causative suffix.

   ‎gezmek (“to walk”) + ‎-dir → ‎gezdirmek (“to take (one) out for a walk”)

   ‎bilmek (“to know”) + ‎-dir → ‎bildirmek (“to inform”)

   ‎ölmek (“to die”) + ‎-dir → ‎öldürmek (“to kill”, literally “to make someone die”)