The greens may be prepared from cabbage sprouts or green savoys.
"The Book of Household Management"
Mrs. Isabella Beeton
Do you think she cares about your houses and intrigues, your Piedmonts and savoys, your Cavours and Metterniches?
"In Direst Peril"
David Christie Murray
savoys and greens in general are dressed in the same way.
"The Cook and Housekeeper's Complete and Universal Dictionary; Including a System of Modern Cookery, in all Its Various Branches,"
Mary Eaton