Recorded since 1748. Named after Brussels, where they were cultivated in the current form perhaps as early as the 13th c. Sprout is from Old English -sprutan (in asprutan (“to sprout”); cognate with Old Saxon sprutan, Old Frisian spruta, Middle Dutch spruten, modern Dutch spruit (“sprout; Brussels sprout”), Old High German spriozan, German sprießen (“to sprout”), from Proto-Germanic *spreutaną, from Proto-Indo-European *sper- (“to strew”).
- (chiefly in the plural) The green vegetable Brassica oleracea var. gemmifera, a cabbage variety native to Belgium.
- Brussels sprouts reach a length of 4 centimeters and resemble clusters of miniature cabbages.