Where does “csontvelő” come from?

csontvelő (Hungarian) comes from Hungarian velő, from Proto-Finno-Ugric wiδɜ.

csontvelő (Hungarian): bone marrow

Definitions

Step	Language	Word	Meaning
1	Hungarian	velő	marrow, bone marrow; essence, pith, marrow, gist
2	Proto-Finno-Ugric	wiδɜ	—

csontvelő — Etymology, Origin & Word History | Etymology Explorer