Where does “coifoi” come from?

coifoi (Romanian) comes from Romanian coif, from Latin cofia, from Proto-West Germanic kuffju, from Proto-Germanic kupjō — cap.

Ancestry of “coifoi”, step by step

StepLanguageWordMeaning
1Romaniancoifcasque
2Latincofia—
3Proto-West Germanickuffjucap, crest
4Proto-Germanickupjōcap
Every word from Proto-Germanic kupjō →Every word from Proto-West Germanic kuffju →Every word from Latin cofia →
coifoi — Etymology, Origin & Word History | Etymology Explorer