# Mach
## English
### Etymology

From Czech Mach, Slovak Mach, Polish Mach and related languages, from pet forms produced by truncation of personal names beginning with Ma- and the addition of the Slavic suffix -ch. Less commonly, a respelling of Hungarian Mács. In some cases, from Vietnamese or Cambodian.

### Pronunciation

* (Received Pronunciation)
** IPA: /mɑːk/, /mæk/, /maːx/
** Audio (Southern England):(file)
** Audio (Southern England):(file)
** Audio (Southern England):(file)
* Rhymes: -ɑːk, -æk, -aːx

### Proper noun

Mach
* A surname from Czech.
* Ernst Mach, Austrian physicist (1838–1916), born in Moravia (now Czech Republic).

### Noun

Mach (countable and uncountable, plural Machs)
* (physics, uncountable) A ratio of the speed (of an object, etc.) to the speed of sound in the fluid or other medium through which the object travels. Usually used to describe supersonic speeds; always precedes the Mach number.
    The jet traveled at Mach 3.
* (informal, countable) Short for Machiavellian.
** 2013, Mark R. Leary, Rick H. Hoyle, Handbook of Individual Differences in Social Behavior, page 97:The 1992 review concluded that Machs are generally less satisfied with their jobs.

#### Derived terms

* Mach diamond
* Mach effect
* Mach front
* Mach wave
* Machmeter
* Mach number
* Mach stem
* Mach tuck

#### Translations
### References

* ↑ Hanks, Patrick, editor (2003), “Mach”, in Dictionary of American Family Names, volume 2, New York: Oxford University Press, →ISBN, page 483.

### Anagrams

* ACMH, Cham, HAMC, HMAC, cha'm, cham

## Choctaw
### Alternative forms

* Macha

### Etymology

From English March.

### Noun

Mach
* March

## Czech
### Pronunciation

* IPA: [ˈmax]

### Proper noun

Mach m anim (female equivalent Machová)
* a male surname

#### Declension
### Further reading

* “Mach”, in Příjmení.cz (in Czech)

## Finnish
### Etymology

From Czech Mach.

### Pronunciation

* IPA: /ˈmɑkh/, [ˈmɑ̝kh]
* Rhymes: -ɑkh

### Noun

Mach
* Mach
    Hävittäjäkoneiden nopeus ilmaistaan usein Macheina.The speed of fighter planes is often expressed in Mach.

#### Declension

Possessive forms of Mach (Kotus type 5/risti, no gradation) :
first-person singular possessor
singular
plural
nominative
Machini
Machini
accusative
nom.
Machini
Machini
gen.
Machini
genitive
Machini
Machieni
partitive
Machiani
Machejani
inessive
Machissani
Macheissani
elative
Machistani
Macheistani
illative
Machiini
Macheihini
adessive
Machillani
Macheillani
ablative
Machiltani
Macheiltani
allative
Machilleni
Macheilleni
essive
Machinani
Macheinani
translative
Machikseni
Macheikseni
abessive
Machittani
Macheittani
instructive
comitative
—Macheineni
second-person singular possessor
singular
plural
nominative
Machisi
Machisi
accusative
nom.
Machisi
Machisi
gen.
Machisi
genitive
Machisi
Machiesi
partitive
Machiasi
Machejasi
inessive
Machissasi
Macheissasi
elative
Machistasi
Macheistasi
illative
Machiisi
Macheihisi
adessive
Machillasi
Macheillasi
ablative
Machiltasi
Macheiltasi
allative
Machillesi
Macheillesi
essive
Machinasi
Macheinasi
translative
Machiksesi
Macheiksesi
abessive
Machittasi
Macheittasi
instructive
comitative
—Macheinesi
first-person plural possessor
singular
plural
nominative
Machimme
Machimme
accusative
nom.
Machimme
Machimme
gen.
Machimme
genitive
Machimme
Machiemme
partitive
Machiamme
Machejamme
inessive
Machissamme
Macheissamme
elative
Machistamme
Macheistamme
illative
Machiimme
Macheihimme
adessive
Machillamme
Macheillamme
ablative
Machiltamme
Macheiltamme
allative
Machillemme
Macheillemme
essive
Machinamme
Macheinamme
translative
Machiksemme
Macheiksemme
abessive
Machittamme
Macheittamme
instructive
comitative
—Macheinemme
second-person plural possessor
singular
plural
nominative
Machinne
Machinne
accusative
nom.
Machinne
Machinne
gen.
Machinne
genitive
Machinne
Machienne
partitive
Machianne
Machejanne
inessive
Machissanne
Macheissanne
elative
Machistanne
Macheistanne
illative
Machiinne
Macheihinne
adessive
Machillanne
Macheillanne
ablative
Machiltanne
Macheiltanne
allative
Machillenne
Macheillenne
essive
Machinanne
Macheinanne
translative
Machiksenne
Macheiksenne
abessive
Machittanne
Macheittanne
instructive
comitative
—Macheinenne
third-person possessor
singular
plural
nominative
Machinsa
Machinsa
accusative
nom.
Machinsa
Machinsa
gen.
Machinsa
genitive
Machinsa
Machiensa
partitive
Machiaan Machiansa
Machejaan Machejansa
inessive
Machissaan Machissansa
Macheissaan Macheissansa
elative
Machistaan Machistansa
Macheistaan Macheistansa
illative
Machiinsa
Macheihinsa
adessive
Machillaan Machillansa
Macheillaan Macheillansa
ablative
Machiltaan Machiltansa
Macheiltaan Macheiltansa
allative
Machilleen Machillensa
Macheilleen Macheillensa
essive
Machinaan Machinansa
Macheinaan Macheinansa
translative
Machikseen Machiksensa
Macheikseen Macheiksensa
abessive
Machittaan Machittansa
Macheittaan Macheittansa
instructive
comitative
—Macheineen Macheinensa :

## Italian
### Noun

Mach m (invariable)
* Mach (number)

## Old Czech
### Pronunciation

* IPA: (13th CE) /ˈmax/
* IPA: (15th CE) /ˈmax/

### Proper noun

Mach m pers
* a male given name

#### Declension
### Further reading

* Jan Gebauer (1903–1916) “Mach”, in Slovník staročeský (in Czech), Prague: Česká grafická společnost "unie", Česká akademie císaře Františka Josefa pro vědy, slovesnost a umění

## Polish
### Etymology

Clipping of personal names beginning with Ma- (e.g. Marcin, Maciej, Małomir) + -ch. Alternatively, from machać.

### Pronunciation

* IPA: /ˈmax/
* Rhymes: -ax
* Syllabification: Mach
* Homophone: mach

### Proper noun

Mach m pers
* a male surname

#### Declension
### Proper noun

Mach f (indeclinable)
* a female surname

### References

* ↑ Stankiewicz, Edward (1986) The Slavic Languages: Unity in Diversity‎, page 261

### Further reading

* “Mach”, in Internetowy słownik nazwisk w Polsce [Internet dictionary of surnames in Poland], 2022

## Portuguese
### Noun

Mach m (plural Machs)
* (physics) Mach (ratio of speed to the speed of sound)

## Slovak
### Pronunciation

* IPA: [max]

### Proper noun

Mach m pers (female equivalent Machová)
* a male surname

#### Declension
### Further reading

* “Mach”, in Slovníkový portál Jazykovedného ústavu Ľ. Štúra SAV [Dictionary portal of the Ľ. Štúr Institute of Linguistics, Slovak Academy of Science] (in Slovak), https://slovnik.juls.savba.sk, 2003–2025

## Unserdeutsch
### Etymology

From German Macht.

### Noun

Mach
* might, power