Where does “portuguesismo” come from?
portuguesismo (Portuguese) comes from Spanish portugués, from Portuguese português, from Old Portuguese portugaes, from Late Latin portucalensis, from Latin Portucale, from Latin Portus Cale, from Latin Portus, from Proto-Italic portus — passed , crossed.
portuguesismo (Portuguese): Portuguesism
Ancestry of “portuguesismo”, step by step