carat
See also: carât
English
    
    
Etymology
    
From Middle French carat, from Italian carato, from Arabic قِيرَاط (qīrāṭ, “carat, similarly small units such as inches”), from Ancient Greek κεράτιον (kerátion, “hornlet, carob seed”), from κέρας (kéras, “horn”) + -ιον (-ion, “forming diminutives”). Doublet of karat and quilate.
Pronunciation
    
Noun
    
carat (plural carats)
- A metric unit of weight equal to exactly 200 mg, chiefly used for measuring precious stones and pearls .
- (historical) Any of several small units of weight used for measuring precious stones and pearls, equivalent to 189–212 mg.
- A 24-point scale used to measure the purity of gold.
- 18-carat gold is 75% gold by mass. 24k gold is 100% pure.
 
Hyponyms
    
- metric carat (SI unit equal to 0.2 g exactly), quilate (historical Iberian and Latin American contexts)
Derived terms
    
Translations
    
weight
| 
 | 
measure of the purity of gold
| 
 | 
French
    
    
Further reading
    
- “carat”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.
Middle French
    
    Etymology
    
First known attestation in 1360 in the plural as quarais. Attested in the singular as quaret at least as early as 1433. Spellings with an initial c- first attested 1367[1].
References
    
- Godefroy, Frédéric, Dictionnaire de l'ancienne langue française et de tous ses dialectes du IXe au XVe siècle (1881) (carat, supplement)
Middle Irish
    
    Pronunciation
    
- IPA(key): /ˈkarəd/
Mutation
    
| Middle Irish mutation | ||
|---|---|---|
| Radical | Lenition | Nasalization | 
| carat | charat | carat pronounced with /ɡ(ʲ)-/ | 
| Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs. | ||
Old Irish
    
    Pronunciation
    
- IPA(key): [ˈkarad]
Mutation
    
| Old Irish mutation | ||
|---|---|---|
| Radical | Lenition | Nasalization | 
| carat | charat | carat pronounced with /ɡ(ʲ)-/ | 
| Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs. | ||
Romanian
    
    
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