'exypnos'
Exypnos=smart.Look here my friend.You say exypnos,so where does it come from?
Ex-ypnos or in english ex-hypnos,you see now?Hypnos,hypnotic,hypnosis,because hypnos means sleep.And ex-hypnos=not sleepy,that is smart.
But euphyis=intelligent.From eu=good and phyo=grow on earth.For example phytology.