Where does “plénitude” come from?
plénitude (French) comes from Old French plenitude, from Latin plenitudo, from Latin plēnus, from Proto-Italic plēnos, from Proto-Indo-European pl̥h₁nós, from Proto-Indo-European pleh₁- — to fill.
plénitude (French): fullness, plenitude
Ancestry of “plénitude”, step by step