calmer|ˈkɑːmə(r)| [f. calm v. + -er1.] One who or that which calms. 1653Walton Angler 33 Angling was..a calmer of unquiet thoughts.1785Keatinge Trav. (1817) I. 265 The duplication of the sum operated as a calmer to his mind.1876M. Arnold Lit. & Dogma 148 The calmer and pacifier.