"You canker blossom!" 3 Shakespearean Insults
1610s, past participle adjective from obsolete certificate (v.), from Medieval Latin certificatus, past participle of certificare (see certify).
early 15c., "action of certifying," from French certificat, from Medieval Latin certificatum "thing certified," noun use of neuter past participle of certificare (see certify). Of documents, from mid-15c., especially a document which attests to someone's authorization to practice or do something (1540s).