# -ин
## Bulgarian
### Etymology

Inherited from Proto-Slavic *-inъ.

### Noun

-ин • (-in) m (feminine -инка or -ка)
* suffix forming singulative nouns, e.g. a person from a group; or, appended to some kinds of nouns to change the form but not its meaning
    ‎Ту́рция (Túrcija) + ‎-ин (-in) → ‎ту́рчин (túrčin)
    ‎акра́н (akrán) + ‎-ин (-in) → ‎акра́нин (akránin)
    ‎бъ́лгар (bǎ́lgar) + ‎-ин (-in) → ‎бъ́лгарин (bǎ́lgarin)
    ‎го́спод (góspod) + ‎-ин (-in) → ‎госпо́дин (gospódin)

### Adjective

-ин • (-in)
* -ine, 's; suffix with possessive or belonging meaning
    ‎ба́ба (bába) + ‎-ин (-in) → ‎ба́бин (bábin)

## Macedonian
### Etymology

Inherited from Proto-Slavic *-inъ.

### Pronunciation

* IPA: [in]

### Suffix

-ин • (-in)
* Appended to nouns to create possessive adjectives.
    ‎баба (baba) + ‎-ин (-in) → ‎бабин (babin)
    ‎дедо (dedo) + ‎-ин (-in) → ‎дедин (dedin)
    ‎кучка (kučka) + ‎-ин (-in) → ‎кучкин (kučkin)
    ‎пчела (pčela) + ‎-ин (-in) → ‎пчелин (pčelin)
    ‎смоква (smokva) + ‎-ин (-in) → ‎смоквин (smokvin)

#### See also

* -ев (-ev), -ов (-ov), -ји (-ji)

## Mongolian

| Mongolian | Cyrillic |
| ᠊ᠢᠨ (-in) | -ин (-in) |

### Etymology

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

### Pronunciation

* IPA: /ˈiŋ/
* Syllabification: -‧ин (2 syllables)

### Suffix

-ин • (-in)
* Marks the attributive form of a noun in the hidden-n declension after a stem ending in the consonant ж (ž), ч (č), ш (š) or щ (šč).

#### Alternative forms

* -н (-n) — stems ending in a vowel
* -ан (-an) — stems ending in other consonants

## Russian
### Alternative forms

* -ын (-yn) — after ц

### Etymology

Inherited from Old East Slavic -инъ (-inŭ), from Proto-Slavic *-inъ.

### Pronunciation

* -ин: IPA: [ʲɪn] (when unstressed)
* -ин: IPA: [ɨn] (when unstressed, after the hushing consonants ш ж ч щ)
* -и́н: IPA: [ˈʲin] (when stressed)
* Audio:(file)

### Suffix

-ин or -и́н • (-in or -ín)
* -'s (possessive suffix)
    ‎Илья́ (Ilʹjá, “Ilya, Elias”) + ‎-и́н (-ín) → ‎Ильи́н (Ilʹín, “Ilya's, Elias's”)
    ‎Лу́ка (Lúka, “Luke”) + ‎-ин (-in) → ‎Лу́кин (Lúkin, “Luke's”)
    Лу́кин день ― Lúkin denʹ ― St. Luke's Day
    ‎Ники́та (Nikíta, “Nikita, Victor”) + ‎-ин (-in) → ‎Ники́тин (Nikítin, “Nikita's, Victor's”)
    ‎Са́ша (Sáša, “Sasha”) + ‎-ин (-in) → ‎Са́шин (Sášin, “Sasha's”)
    ‎дя́дя (djádja, “uncle”) + ‎-ин (-in) → ‎дя́дин (djádin, “uncle's”)
    ‎жена́ (žená, “wife”) + ‎-ин (-in) → ‎же́нин (žénin, “wife's”)
    ‎сестра́ (sestrá, “sister”) + ‎-ин (-in) → ‎се́стрин (séstrin, “sister's”)
* Forms surnames
    ‎Фома́ (Fomá, “Thomas”) + ‎-ин (-in) → ‎Фоми́н (Fomín)
    ‎пу́шка (púška, “cannon”) + ‎-ин (-in) → ‎Пу́шкин (Púškin)
    ‎гага́ра (gagára, “loon”) + ‎-ин (-in) → ‎Гага́рин (Gagárin)
    ‎Са́вва (Sávva, “Sabbas”) + ‎-ин (-in) → ‎Са́ввин (Sávvin)

#### Usage notes

* The suffix is usually unstressed even when added to ending-stressed nouns; compare же́нин (žénin) from жена́ (žená). (But not always, cf. Ильи́н (Ilʹín) from Илья́ (Ilʹjá).)

#### Declension

$^2$ Obsolete.
$^1$ Rare.

#### See also

* -ев (-ev), -ёв (-jóv), -ов (-ov)

## Ukrainian
### Alternative forms

* -їн (-jin) (after iotated vowels)

### Etymology

Inherited from Old East Slavic -инъ (-inŭ), from Proto-Slavic *-inъ.

### Pronunciation

* IPA: [ ɪn]

### Suffix

-ин • (-yn) m (variant -їн, feminine -ина, 'masculine nouns' equivalent -ів)
* added to feminine nouns to form possessive adjectives, akin to English -'s
    ‎ті́тка (títka, “aunt”) + ‎-ин (-yn) → ‎ті́тчин (títčyn, “aunt's”)
    ‎сестра́ (sestrá, “sister”) + ‎-ин (-yn) → ‎се́стрин (séstryn, “sister's”)
    ‎ма́тір (mátir, “mother”) + ‎-ин (-yn) → ‎ма́терин (máteryn, “mother's”)
    ‎Тетя́на (Tetjána, “Tetiana”) + ‎-ин (-yn) → ‎Тетя́нин (Tetjányn, “Tetiana's”)
    ‎соба́ка m (sobáka, “dog”) + ‎-ин (-yn) → ‎соба́чин (sobáčyn, “dog's”)
    ‎Ілля́ m (Illjá, “Illia, Elijah”) + ‎-ин (-yn) → ‎Ілли́н (Illýn, “Illia's, Elijah's”)

#### Usage notes

* Note that, although certain animal and personal nouns such as соба́ка (sobáka) or Ілля́ (Illjá) are treated as masculine, they are grammatically feminine and thus take the -ин suffix rather than the masculine -ів (-iv).

#### See also

* -ів (-iv), -їв (-jiv), -єв (-jev), -ьов (-ʹov)

### Suffix

-ин • (-yn) f
* genitive plural of -ина (-yna)