Hungarian name for jam-walnut filling I used to know someone who was born in the 1910s and raised in Budapest, who made a filling for blintzes out of jam and ground walnuts.

I now know someone (unrelated to the first person) who was born in the 1920s and raised in Arad speaking Hungarian, who makes a filling for baked goods out of jam and ground walnuts.

So I guess that filling is an Hungarian specialty. What's it called in Hungarian? Google isn't helping, and the Arad person doesn't recall.
Dió lekvár (walnut jam). Usually made with green walnuts (Zöld dió lekvár). https://gasztroangyal.hu/receptek/zold-dio-lekvar/