Where does “plenilunio” come from?
plenilunio (Italian) comes from Latin plenilunium, from Latin lūna, from Old Latin losna, from Proto-Italic louksnā, from Proto-Indo-European lówksneh₂, from Proto-Indo-European lewḱ-, from Proto-Indo-European lewk- — bright; to shine; to see.
plenilunio (Italian): full moon
Ancestry of “plenilunio”, step by step