Where does “plenplena” come from?
plenplena (Esperanto) comes from Esperanto plena, from Latin plēnus, from Proto-Italic plēnos, from Proto-Indo-European pl̥h₁nós, from Proto-Indo-European pleh₁- — to fill.
plenplena (Esperanto): chock full
Ancestry of “plenplena”, step by step