Cavalier derives from the same Latin root as the French word chevalier (as well as the Spanish word caballero), the
"Cavalier" is chiefly associated with the Royalist supporters of King Charles I in his struggle with Parliament in the
1642 (June 10) Propositions of Parlt. in Clarendon v. (1702) I. 504 Several sorts of malignant Men, who were about the King; some whereof, under the name of Cavaliers, without having respect to the Laws of the Land, or any fear either of God or Man, were ready to commit all manner of Outrage and Violence. 1642 Petition Lords & Com. 17 June in Rushw. Coll. III. (1721) I. 631 That your Majesty..would please to dismiss your extraordinary Guards, and the Cavaliers and others of that Quality, who seem to have little Interest or Affection to the publick Good, their Language and Behaviour speaking nothing but Division and War.
Charles, in the Answer to the Petition 13 June 1642 speaks of Cavaliers as a "word by what mistake soever it seemes much in disfavour". It was soon