I sent you the chiccory seed for trial, as it is so highly spoken of by A. Young and other British writers, […] In foreign countries an imitation of coffee is made, by grinding the dried and burnt roots, and mixing a little real coffee wih the ground roots.
Source: wiktionary
Chiccory, as gentlemen know, is a substitute for coffee, and is preferred by many people to coffee. It is recommended by physicians in many cases of nervous disease as a substitute for coffee for the use of those for whose nerves coffee is too violent, yet who are accustomed to that beverage when in health.
Source: wiktionary
In yet others the whole mass of the florets, central as well as external, has assumed this ray-like or strap-like form; and to this group belong the dandelions, hawk-weeds, salsifies, lettuces, sow-thistles, chiccories, nippleworts, and cat's-ears.
Source: wiktionary