Where does “székesegyházak” come from?

székesegyházak (Hungarian) comes from Hungarian székesegyház, from Hungarian egyház, from Hungarian így, from Hungarian i, from Hungarian e, from Proto-Uralic e- — this; not; the negative verb.

Ancestry of “székesegyházak”, step by step

Step	Language	Word	Meaning
1	Hungarian	székesegyház	cathedral
2	Hungarian	egyház	church
3	Hungarian	így	in this way, like this; thus
4	Hungarian	i	small, young
5	Hungarian	e	this; look!, hey!
6	Proto-Uralic	e-	this; not; the negative verb

Every word from Proto-Uralic e- →Every word from Hungarian e →Every word from Hungarian i →