Where does “Sălăgian” come from?

Sălăgian (Romanian) comes from Romanian Sălaj, from Hungarian Szilágy, from Hungarian ágy, from Proto-Finno-Ugric ajŋe — brain.

Ancestry of “Sălăgian”, step by step

StepLanguageWordMeaning
1RomanianSălaj—
2HungarianSzilágy—
3Hungarianágybed
4Proto-Finno-Ugricajŋebrain
Every word from Proto-Finno-Ugric ajŋe →Every word from Hungarian ágy →Every word from Hungarian Szilágy →