how to say “to behave” in Hebrew
To behave is to conduct oneself in a certain way. Thus Modern Hebrew draws upon the Biblical root נ.ה.ג meaning to conduct, to drive (such as a chariot) and creates the reflexive התפעל verb להתנהג .
He behaves in a wild manner!
Other words of the same root include מנהג – custom (the way people are accustomed to conducting themselves), לנהוג – to drive (a vehicle), and מנהיגות – leadership (encouraging others to conduct themselves in a certain way).