Definition of "civillest"

This is the true Monsieur [Gaston, Duke of Orléans], who ever stands stradling, and when he converses even with the civillest Ladies, faces them in the same posture, ordering and tossing his Pike, with his hands in his Cod-piece.

1650 June 13–20, Marchamont Nedham, editor, Mercurius Politicus. […], number 2, London: Printed for Robert White, page 30