cos lettuce

See also: Cos lettuce

English

Alternative forms

• Cos lettuce, cos

Etymology

Uncertain. Variously derived from Cos, an alternative spelling of the Greek island of Kos, or from Arabic خس (ḵass, “lettuce”).

Noun

cos lettuce (countable and uncountable, plural cos lettuces)

1. (chiefly UK) Synonym of romaine lettuce, a long-leaved variety of lettuce.