Where does “faeprük” come from?

faeprük (Hungarian) comes from Hungarian faeper, from Hungarian eper, from Hungarian eperyə, from Hungarian eperɣə, from Proto-Ugric äppärĕ-kə, from Proto-Ugric äppɜ-rɜ-kɜ.

faeprük (Hungarian): third-person plural single-possession possessive...