Where does “polgárháborúk” come from?

polgárháborúk (Hungarian) comes from Hungarian polgárháború, from Hungarian háború, from Hungarian -gat, from Hungarian -at, from Hungarian -t, from Proto-Uralic -tt.

Ancestry of “polgárháborúk”, step by step

Step	Language	Word	Meaning
1	Hungarian	polgárháború	civil war
2	Hungarian	háború	war
3	Hungarian	-gat	Mostly added to transitive verbs to form new...
4	Hungarian	-at	Added to a back-vowel verb to form a verb with a...
5	Hungarian	-t	Used to form the accusative case; -ed, -t. Used...
6	Proto-Uralic	-tt	—

Every word from Proto-Uralic -tt →Every word from Hungarian -t →Every word from Hungarian -at →