ˈcompasser [f. compass v.1 + -er1.] One who compasses; esp.† a designer, contriver. 1494Fabyan vii. 563 The duke..compasser of all this myschefe.a1593H. Smith Serm. (1622) 492 He hath his compassers and spies in euery country.1641Newrobe Canterb.Medit. 1 My intellect, that comprehensive compasser.