# auto-
## English
### Alternative forms

* aut- (used before a vowel)

### Pronunciation

* (Received Pronunciation) IPA: /ˈɔː.tə-/
* (General American) IPA: /ˈɔ.tə-/, [ˈɔɾə-]
** (cot–caught merger) IPA: /ˈɑ.tə-/, [ˈɑɾə-]
* Audio (Southern England):(file)
* Hyphenation: au‧to-

### Etymology 1

Learned borrowing from Ancient Greek αὐτο- (auto-, “self-”).

#### Prefix

auto-
* Reflexive, regarding or to oneself.
    ‎auto- + ‎biography → ‎autobiography
    ‎auto- + ‎erotic → ‎autoerotic

##### Synonyms

* self-, ipsi-

##### Antonyms

* allo-, hetero- (different)
* syn- (concomitant)
* inter- (reciprocal)
* co-, con-/com-/col-/cor-, syn-/sym-/syl-, inter- (mutual)

##### Derived terms

* autoclave
* automaton
* autosome

##### Translations
### Etymology 2

Clipping of automatic.

#### Prefix

auto-
* Automatic.
    ‎auto- + ‎focus → ‎autofocus
    ‎auto- + ‎loader → ‎autoloader
    ‎auto- + ‎walk → ‎autowalk

##### Translations
### Etymology 3

Clipping of automobile, itself equivalent to auto- (“self”) + mobile.

#### Prefix

auto-
* Self-propelled.
    ‎auto- + ‎cab → ‎autocab
    ‎auto- + ‎car → ‎autocar
* Relating to cars or the driving of cars.
    ‎auto- + ‎cross → ‎autocross
    ‎auto- + ‎-phile → ‎autophile

##### Translations
### Derived terms
### References

* ↑ “auto-, comb. form$^2$”, in OED Online ⁠, Oxford: Oxford University Press, launched 2000.

### Anagrams

* aout, outa

## Catalan
### Etymology

Borrowed from Ancient Greek αὐτο- (auto-).

### Pronunciation

* IPA: (Central, Balearic, Valencia) [ˈa]

### Prefix

auto-
* auto- (regarding oneself)
* auto- (relating to cars)

#### Derived terms
### Further reading

* “auto-” in Diccionari de la llengua catalana, segona edició, Institut d’Estudis Catalans.
* “auto-”, in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana, 2025
* “auto-” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.
* “auto-” in Diccionari català-valencià-balear, Antoni Maria Alcover and Francesc de Borja Moll, 1962.

## Czech
### Pronunciation

* IPA: [au̯to ]

### Prefix

auto-
* auto- (regarding oneself)
    Synonym: sebe-
    ‎auto- + ‎cenzura → ‎autocenzura

#### Derived terms
### Further reading

* “auto-”, in Slovník spisovného jazyka českého (in Czech), 1960–1971, 1989
* auto- I in Slovník afixů užívaných v češtině, 2017
* auto- II in Slovník afixů užívaných v češtině, 2017

## Danish
### Prefix

auto-
* self
    autobiografi, autofiktion
* automatic
    autozoom, autopilot
* cars
    autoskade, autoværksted

#### Derived terms
## Dutch
### Prefix

auto-
* auto- (forms words pertaining to the self)
* auto- (forms words pertaining to the automation)

#### Usage notes

* Unlike in English, words relating to cars starting with auto- (e.g. autoweg) are not seen to be formed by prefixation but by regular compounding with the noun auto.

#### Derived terms
## Finnish
### Etymology

Internationalism (see English auto-), ultimately from Ancient Greek αὐτο- (auto-).

### Pronunciation

* IPA: /ˈɑu̯to-/, [ˈɑ̝u̯t̪o̞-]

### Prefix

auto-
* auto-, self- (regarding oneself)
    Synonyms: oma-, itse-
    autobiografia ― autobiography
    autonomia ― autonomy
    omaelämäkerta ― autobiography
    itsehallinto ― self-governance, autonomy
* auto- (automatic)
    Synonyms: automaatti-, automaattinen
    autopilotti ― autopilot
    automaattiohjaus ― autopilot

#### Usage notes

* In Finnish the prefix auto- is chiefly used with loanwords, see usage examples above.

#### Derived terms
### Further reading

* “auto-”, in Kielitoimiston sanakirja [Dictionary of Contemporary Finnish]‎ (in Finnish) (online dictionary, continuously updated), Kotimaisten kielten keskuksen verkkojulkaisuja 35, Helsinki: Kotimaisten kielten tutkimuskeskus (Institute for the Languages of Finland), 2004–, retrieved 2023-07-02

### Anagrams

* auot, outa

## French
### Etymology

Learned borrowing from Ancient Greek αὐτο- (auto-), from αὐτός (autós, “self”).

### Pronunciation

* IPA: /o.tɔ/, /ɔ.tɔ/
* Audio:(file)

### Prefix

auto-
* auto- (regarding oneself)
* auto- (automatic)
* auto- (relating to cars)

#### Usage notes

* Auto- is sometimes added to reflexive verbs in order to stress the reflexiveness of the action. When this is done, the reflexive pronoun is always used as well:
       Je m'auto-sabote. ― I sabotage myself. (literally, “I self-sabotage myself.”)

#### Derived terms
## Galician
### Etymology

From Ancient Greek αὐτο- (auto-).

### Prefix

auto-
* auto-, self-

#### Derived terms

From

### Further reading

* “auto-”, in Dicionario da Real Academia Galega (in Galician), A Coruña: Royal Galician Academy, 2012–2025

## German
### Pronunciation

* Audio:(file)

### Prefix

auto-
* auto-

#### Derived terms
## Hungarian
### Etymology

From Ancient Greek αὐτός (autós, “self”).

### Pronunciation

* IPA: [ˈɒuto], [ˈɒu̯to]

### Prefix

auto-
* auto- (regarding oneself)
* auto- (automatic)

#### Derived terms
### References

* ↑ Tótfalusi, István. Idegenszó-tár: Idegen szavak értelmező és etimológiai szótára (’A Storehouse of Foreign Words: an explanatory and etymological dictionary of foreign words’). Budapest: Tinta Könyvkiadó, 2005. →ISBN
* ↑ Siptár, Péter and Miklós Törkenczy. The Phonology of Hungarian. The Phonology of the World’s Languages. Oxford University Press, 2007. →ISBN, p. 17

## Indonesian
### Etymology

From Dutch auto-, from Ancient Greek αὐτός (autós, “self”).

### Pronunciation

* IPA: [au̯to]
* Hyphenation: auto

### Prefix

auto-
* auto-: regarding oneself.

#### Derived terms
### Further reading

* “auto-” in Kamus Besar Bahasa Indonesia, Jakarta: Agency for Language Development and Cultivation – Ministry of Education, Culture, Research, and Technology of the Republic of Indonesia, 2016.

## Italian
### Etymology 1

From Ancient Greek αὐτός (autós, “self”).

#### Prefix

auto-
* (highly productive) auto-, self- (regarding oneself; by oneself)
* (highly productive) auto-, self- (automatic)
* (mathematics) eigen-
* (rare) homo- (same)

##### Derived terms
#### Further reading

* auto-$^1$ in Treccani.it – Vocabolario Treccani on line, Istituto dell'Enciclopedia Italiana

### Etymology 2

From auto, automobile.

#### Prefix

auto-
* auto- (relating to cars)

##### Derived terms
#### Further reading

* auto-$^2$ in Treccani.it – Vocabolario Treccani on line, Istituto dell'Enciclopedia Italiana

## Norwegian Bokmål
### Etymology

From Ancient Greek αὐτός (autós, “self”).

### Prefix

auto-
* auto-

#### Derived terms
### References

* “auto-” in The Bokmål Dictionary.

## Norwegian Nynorsk
### Etymology

From Ancient Greek αὐτός (autós, “self”).

### Prefix

auto-
* auto-

#### Derived terms
### References

* “auto-” in The Nynorsk Dictionary.

## Polish
### Etymology

Derived from Ancient Greek αὐτο- (auto-).

### Pronunciation

* IPA: /aw.tɔ/
* Audio 1:(file)
* Audio 2:(file)
* Rhymes: -awtɔ
* Syllabification: [please specify syllabification manually]
* Homophone: auto

### Prefix

auto-
* auto-, as relating to oneself
    Synonym: samo-
    ‎auto- + ‎biografia → ‎autobiografia
* auto-, automatic
    Synonym: samo-
    ‎auto- + ‎pilot → ‎autopilot
* auto-, as relating to cars
    Synonym: samo-
    ‎auto- + ‎alarm → ‎autoalarm

#### Derived terms
### Further reading

* auto- in Polish dictionaries at PWN

## Portuguese
### Etymology

Borrowed from Ancient Greek αὐτός (autós, “self”).

### Pronunciation

* (Brazil) IPA: /ˌaw.tu/ [ˌaʊ̯.tu]
* (Brazil) IPA: /ˌaw.tu/ [ˌaʊ̯.tu]
** (Southern Brazil) IPA: /ˌaw.to/ [ˌaʊ̯.to]
* (Portugal) IPA: /ˌaw.tɔ/

### Prefix

auto-
* self-; auto- (done by or directed at oneself)
    ‎auto- + ‎ódio (“hatred”) → ‎auto-ódio (“self-hatred”)
* auto- (automatic)
    ‎auto- + ‎foco (“foco”) → ‎autofoco (“autofocus”)
* auto- (relating to automobiles)
    ‎auto- + ‎carro (“car”) → ‎autocarro (“bus”)
* (Brazil, linear algebra) eigen- (relating to eigenvectors and eigenvalues)

#### Derived terms
## Spanish
### Etymology

Borrowed from Ancient Greek αὐτο- (auto-).

### Prefix

auto-
* auto-
* drive-in

#### Derived terms
### Further reading

* “auto-”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8, Royal Spanish Academy [Spanish: Real Academia Española], 2024 December 10