1no object To follow the doctrine of Plato; to philosophize after the manner of Plato; to be a Platonist.
2with object To give (something) a Platonic character; to make Platonic.
Late 16th century. From Hellenistic Greek πλατωνίζειν (Origen) from ancient Greek Πλάτων, the name of Plato + -ίζειν. Compare post-classical Latin platonissare, Middle French, French platoniser to consider detached from the material world, to follow the doctrine of Plato.