Where does “nagyfejű” come from?

nagyfejű (Hungarian) comes from Hungarian fejű, from Hungarian fej, from Proto-Uralic päŋe — head.

nagyfejű (Hungarian): big-headed

Definitions

Step	Language	Word	Meaning
1	Hungarian	fejű	-headed
2	Hungarian	fej	head; head, mind, brain, intellect; heads,...
3	Proto-Uralic	päŋe	head

nagyfejű — Etymology, Origin & Word History | Etymology Explorer