zaffer

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zaf·fer

also zaf·fre  (zăf′ər)
n.
An impure oxide of cobalt, used to produce a blue color in enamel and in the making of smalt.

[Italian zaffera, from Old French safre, perhaps alteration of safir, sapphire; see sapphire, or from Arabic ṣufr, yellow copper, brass, from 'aṣfar, yellow; see ṣpr in Semitic roots.]

zaffer

(ˈzæfə) or

zaffre

n
(Elements & Compounds) impure cobalt oxide, used to impart a blue colour to enamels
[C17: from Italian zaffera; perhaps related to Latin sapphīrus sapphire]

zaf•fer

(ˈzæf ər)

n.
a blue pigment containing impure cobalt oxide, used in ceramic glazes.
[1655–65; < Italian zaffera, perhaps < Latin sapphīra sapphire]
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References in classic literature ?
Zaffre, digested in aqua regia, and diluted with four times its weight of water, is sometimes employed; a green tint results.
DEIRDRE O'BRIEN The Ice Beneath Her Camilla Grebe Zaffre.
The couple said that the competition had receive an overwhelming number of entries and along with publishing company Bonnier Zaffre, the team of judges have now completed the in-depth selection process and have decided on a shortlist of crime, psychological thrillers, women's fiction and historical fiction titles by eight debut authors.
The round, which was oversubscribed, exceeded USD 6m from a well-respected group of healthcare and consumer technology investors, including7wire Ventures, Lightbank, Zaffre Investments, Martin Ventures, Dallas Venture Partners and LSAN/Azimuth Ventures.
With the exception of the likely outsiders Zaffre and Kyathos, a case of sorts could be made for any of the others, but you would be hard pushed to argue that any of them look especially well handicapped.
Zero Risk always had his opponents on the stretch, eventually having a length and three-quarters to spare over Audiostreetdotcom, with today's rivals Zaffre Noir and East Hill behind.
Baines partnered Colnside Brook to finish second in the EBF/Doncaster Bloodstock Sales Mares' Only Standard Open NH Flat Race but was found to have interfered with the winner Zaffre.
Gallagher, winded in a fall on Zaffre Noir in the previous race, had initiated a 62-1 double by driving 2-1 favourite Tikram to a hard-fought win in the opening Novices' Hurdle.
Pitman completed a 29-1 double when Zaffre Noir (8-1) landed a convincing five-length victory under Timmy Murphy in the finale.
However, both were back in the winner's enclosure after the wins of The Staggery Boy and Zaffre in the handicap chase and the mares' novice hurdle respectively.
Patriarch is joined among the entries for the bumper by Warwick winner Sheer Genius, Genuine Article and Zaffre Noir but it is unlikely they will all run.
Lord Of Illusion followed up his recent Wetherby success in facile fashion as he came well clear of Zaffre Noir in the hands of Paul Maloney to collect the novices' chase.