poly- — many, much (affix)

polygamy C2

/pəˈlɪɡ.ə.mi/ The condition of having more than one spouse or marriage partner at one time.

polygon C2

/ˈpɑːliɡɑːn/ a closed plane figure bounded by three or more straight sides

polyglot C2

/ˈpɑlɪˌɡlɑt/ a person who can speak or use several languages