praescriptor Save DMLBS praescriptor [CL praescriptus p. ppl. of praescribere+-tor] , one who gives orders or advice. dictator ‥ praeceptor, ‥ dihtnere, ordinator, ~or GlH 420; aque transmeande ~orem et vadi ‥ monstrandi ducem G. Steph. 47.