E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Coloquintida (St.).
Charles I. was so called. He was bitter as gall to the Levellers.
1
The Levellers styled him [Charles I.] an Ahab, and a Coloquintida, a man of blood, and the ever-lasting obstacle to peace and liberty.Howitt: History of England (Charles I., chap. vi. p. 284).