different between rubian vs rubican

English

From Latin rubia (“madder”), from rubeus (“red”).

rubian (uncountable)

(organic chemistry) One of several colour-producing glycosides found in madder root.

French

rubican (not comparable)

(of a horse) Coloured mostly red, bay, or black, with flecks of white or grey especially on the flanks.
(Can we find and add a quotation of Smart to this entry?)

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