No such word as "convocate"

Friday, January 8, 2016 I need you to know that there is no such word as "convocate" in English. Isn't that not what you have been saying? CAUTION: From the noun "convocation", the verb that can be derived is "convoke". Let me cite examples: "UNILAG will soon convoke the 2014/2015 graduating students of the school (not "convocate"). My cousin is one of those that would be convoked in the next convocation ceremony of Oxford University (not "convocated"). Have you been convoked? (not "convocated"). Digest this, please.