Sentence:  To make Dutch <WSD>pink</WSD>, boil the stems of woad in a solution of alum, and then mix the liquor with clay, marl, or chalk, which will become mixed with the colour of the decoction 
Meaning of the word marked with <WSD> tags:  Any of various (lake#Etymology 4) pigments or dyes in yellow, yellowish green, or brown shades made with plant coloring and a metallic oxide base.