Word Study
Colza
CIDE DICTIONARY
Colza, n. [F., fr. D. koolzaad, prop., cabbage seed; kool (akin to E. cole) + zaad, akin to E. seed.].
A variety of cabbage (Brassica oleracea ), cultivated for its seeds, which yield an oil valued for illuminating and lubricating purposes; summer rape. [1913 Webster]
For further exploring for "Colza" in Webster Dictionary Online