# оба
## Bulgarian
### Etymology

Inherited from Proto-Slavic *oba.

### Numeral

о́ба • (óba) m pl (feminine о́бе)
* (dated, poetic) both
    на обата бряга ― na obata brjaga ― on the both banks [of a river/stream]
    нека оба да ... ― neka oba da ... ― let us both ...

### References

* “оба”, in Речник на българския език [Dictionary of the Bulgarian Language] (in Bulgarian), Sofia: Bulgarian Academy of Sciences, 2014
* “оба”, in Старобългарски речник [Old Bulgarian Dictionary] (in Bulgarian), https://histdict.uni-sofia.bg, 2011—2024

## Kazakh

Alternative scripts :
| Arabic | وبا |
| Cyrillic | оба |
| Latin | oba |
| Yañalif | oʙa |

### Etymology 1
#### Noun

оба • (oba)
* mound

### Etymology 2

From Persian وبا (vabâ), from Arabic وَبَاء (wabāʔ).

#### Noun

оба • (oba)
* plague

### Etymology 3
#### Noun

оба • (oba)
* (dialectal, Pavlodar) hill, hillock

## Russian
### Etymology

Inherited from Proto-Slavic *oba, from Proto-Indo-European *h₂e(m)bʰoh₁, whence also Lithuanian abu, Latvian abi, Latin ambo, Ancient Greek ἄμφω (ámphō).

### Pronunciation

* IPA: [ˈobə]
* Audio:(file)

### Numeral

о́ба • (óba) m pl or n pl (feminine о́бе)
* both

#### Usage notes

* The usage pattern is the same as that found with два (dva):
** о́ба (óba) and о́бе (óbe) in the nominative or (if inanimate) accusative case govern the genitive singular of the noun. While the noun in a nominative construction is in the genitive singular following о́ба (óba) or о́бе (óbe), an intervening adjective will be in the genitive plural (if masculine or neuter) or nominative plural (if feminine):
*** о́ба бе́лых стола́ ― óba bélyx stolá ― both white tables
*** о́ба но́вых окна́ ― óba nóvyx okná ― both new windows
*** о́бе америка́нские семьи́ ― óbe amerikánskije semʹí ― both American families (Note difference in stress from nominative plural, се́мьи.)
** However, when о́ба (óba) is used in the nominative case for masculine or neuter nouns, it is also permissible and indeed common to use nominative plural adjectives. Either variation may be used.
*** о́ба э́ти подхо́да ― óba éti podxóda ― both these approaches
*** о́ба э́тих подхо́да ― óba étix podxóda ― both these approaches
** In all other cases (including animate accusative), о́ба (óba) or о́бе (óbe), the noun, and any intervening adjective are in the plural and agree in case:
*** обо́их испа́нских мужчи́н ― obóix ispánskix mužčín ― both Spanish men (Animate accusative.)
*** с обо́ими ру́сскими солда́тами ― s obóimi rússkimi soldátami ― with both Russian soldiers
*** об обе́их англи́йских кни́гах ― ob obéix anglíjskix knígax ― about both English books
* The masculine genitive singular form обо́его (obójevo) is an anomaly that sees only limited use:
** обо́его по́ла ― obójevo póla ― of both sexes

#### Declension

$^*$Obsolete.

#### Derived terms

* обою́дный (obojúdnyj)

#### Descendants

* ⇒ Kamassian: обәлар (obəlar)

## Serbo-Croatian
### Etymology

Inherited from Proto-Slavic *oba.

### Pronunciation

* IPA: /ôba/
* Hyphenation: о‧ба

### Noun

о̏ба m or n (Latin spelling ȍba)
* both (for masculine and neuter pairs)

#### Related terms

* о̏бје/о̏бе (for feminine pairs)

## Ukrainian
### Etymology

Inherited from Proto-Slavic *oba.

### Pronunciation

* IPA: [ɔˈba]

### Numeral

оба́ • (obá) m pl or n pl (feminine обі́)
* (dated or dialectal) both
    Synonym: оби́два (obýdva) (more common)

#### Declension
### Further reading

* Bilodid, I. K., editor (1970–1980), “оба”, in Словник української мови: в 11 т. [Dictionary of the Ukrainian Language: in 11 vols] (in Ukrainian), Kyiv: Naukova Dumka
* Shyrokov, V. A., editor (2019), “оба”, in Словник української мови: у 20 т. [Dictionary of the Ukrainian Language: in 20 vols] (in Ukrainian), volumes 10 (на́ступ – о́бміль), Kyiv: Ukrainian Lingua-Information Fund, →ISBN
* “оба”, in Горох – Словозміна [Horokh – Inflection] (in Ukrainian)
* “оби́два”, in Kyiv Dictionary (in English)