sobre
/ˈsobɾe/ · A1 · prep
over, above, on, upon, atop
✉️ sobre = Latin super (over): an envelope is the cover that goes over a letter
From Latin super, the same root as English super- and sur- (surface, surcharge). The noun sense follows from the preposition: an envelope goes over the letter. About works the same way as English talk over a topic.