# breyta
## Icelandic
### Pronunciation

* IPA: /ˈpreiːta/
* Rhymes: -eiːta

### Etymology 1

From Old Norse breyta, causative of brjóta (“to break”), from Proto-Germanic *breutaną, from Proto-Indo-European *bʰrewd-. Cognate with Old English ābrīetan (“to break”).

#### Noun

breyta f (genitive singular breytu, nominative plural breytur)
* (mathematics) variable
    Synonyms: breytistærð, breytileg stærð

##### Derived terms

* aukabreyta (“parameter”)
* ákvörðunarbreyta (“control variable, decision variable”)
* Boole-breyta (“Boolean variable”)
* breytulaus (“variable-free”)
* breytuskipti (“change of variables”)
* bundin breyta (“bound variable, dummy variable”)
* fjölbreytuaðhvarf (“multiple regression”)
* fjölbreytufervikagreining (“analysis of dispersion, dispersion analysis, multivariate analysis of variance”)
* fjölbreytugreining (“multivariate analysis”)
* flokkunarbreyta (“attribute, categorical variable”)
* frjáls breyta (“free variable”)
* frumbreyta (“argument, independent variable”)
* fullyrðingabreyta (“propositional variable, sentential variable”)
* fylgibreyta (“basic variable, concomitant variable, dependent variable”)
* fylgnar breytur (“correlated variables”)
* færibreyta (“parameter”)
* grannfræðileg óbreyta (“topological invariant”)
* háð breyta (“basic variable, dependent variable”)
* heildunarbreyta (“integration variable”)
* hlaupabreyta (“parameter”)
* leppbreyta (“bound variable, dummy variable”)
* margbreytuaðhvarf (“multiple regression”)
* margliða með mörgum breytum (“multinomial, polynomial in several variables”)
* málskipanarbreyta (“syntactic variable”)
* miðsett slembibreyta (“centralized random variable, centred random variable”)
* óbreyta (“invariant”)
* óháð breyta (“argument, independent variable”)
* raunbreyta (“real variable”)
* rökbreyta (“logical variable”)
* skýribreyta (“determining variable, predicated variable, regressor”)
* skýringabreyta (“cause variable, explanatory variable”)
* slakbreyta (“slack variable”)
* slembibreyta (“aleatory variable, chance variable, random variable, stochastic variable, variate”)
* snúningsóbreyta (“rotation invariant”)
* stakbreyta (“individual variable, object variable”)
* stikabreyting (“parameter change, reparametrization, transformation of parameter”)
* stjórnbreyta (“control variable, decision variable”)
* strjál breyta (“discrete variable”)
* stýrð breyta (“controlled variable”)
* stýribreyta (“control variable, decision variable”)
* tegrunarbreyta (“integration variable”)
* tímabreyta (“time parameter”)
* tvinnbreyta (“complex variable”)
* tvinnbreytistærð (“complex variable”)
* töluóbreyta (“numerical invariant”)
* umsagnarbreyta (“predicate variable”)
* umsögn með mörgum breytum (“many-place predicate, multiplace predicate”)
* yfirbreyta (“metavariable”)
* yrðingabreyta (“propositional variable, sentential variable”)

### Etymology 2
#### Verb

breyta (weak verb, third-person singular past indicative breytti, supine breytt)
* to change, to modify, to alter [with dative ‘something’ and í (+ accusative) ‘into something else’]
** Judges 2:19
    En er dómarinn andaðist, breyttu þeir að nýju verr en feður þeirra, með því að elta aðra guði til þess að þjóna þeim og falla fram fyrir þeim. Þeir létu eigi af gjörðum sínum né þrjóskubreytni sinni.But when the judge died, the people returned to ways even more corrupt than those of their ancestors, following other gods and serving and worshiping them. They refused to give up their evil practices and stubborn ways.
** Partý Jesús
    Jesús breytti vatni í vín,
    já, Jesús breytti vatni í vín
    hann má koma í partý til mín!
       Jesus turned water into wine,
       yes, he turned water into wine,
       he can come party with me!

##### Derived terms

* breyta í (“to turn into, to change into”)
* breyta til (“to make a change”)
* breytast
* stigbreyta (“to compare”)

### References

* ↑ Ásgeir Blöndal Magnússon (1989) “breyta”, in Íslensk orðsifjabók, Reykjavík: Árni Magnússon Institute for Icelandic Studies, →ISBN (Available at Málið.is under the “Eldri orðabækur” tab.)
* ↑ de Vries, Jan (1977) Altnordisches etymologisches Wörterbuch [Old Norse Etymological Dictionary]‎ (in German), 2nd revised edition, Leiden: Brill, page 56