Where does “háborúja” come from?

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

Ancestry of “háborúja”, step by step

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