σχολάζοντα [2 verses](part sg pres act masc acc) "Empty" is the verb, scholazo,  which means "to loiter," "to be at leisure," "to have spare time," "to have nothing to do," "to loiter linger, "to have rest or respite," "to devote one's time to a thing," of a place: "to be vacant," "unoccupied," "to be reserved for," and, of students, "to devote oneself to learning: hence, give lectures."  - The word translated as "empty" means "having not occupied himself" both in the sense "having found nothing to do" and, of a place, "not having an occupant." Since it refers to a person who an "evil spirit" has left, it has both the sense not finding another better to take its place and the person having nothing else to do, as in "idle hands are the devil's playground."