French purple
Appearance
English
[edit]Noun
[edit]French purple (usually uncountable, plural French purples)
- A dyestuff obtained from certain lichen known as orchella weeds, used for colouring woollen and silken fabrics, without the aid of mordants.[1]
See also
[edit]References
[edit]- ^ 1839, Andrew Ure, A Dictionary of Arts, Manufactures, and Mines