Definition of zaffer in English:

zaffer

(also zaffre)

Pronunciation /ˈzafər/ /ˈzæfər/

noun

  • Impure cobalt oxide, formerly used to make smalt and blue enamels.

    ‘In Europe, zaffre was used as early as the 14th century as a pigment for paints, glazes and glass.’
    • ‘In Western literature the word zaffer was used to denote this pigment.’

Origin

Mid 17th century from Italian zaffera or French safre.