Safe! No clever things to add!
Safe first showed up in the early fourteenth century, from the Old French sauf and classical Latin salvus, saved. Though it looks it, salvus is not related to salve, but rather salus, safety, which also gave us salute and solid, weirdly enough. Salvus/salus can also be traced back to Proto Indo European, where it’s solwos, from sol, or whole. And something that’s whole is safe. Usually. I mean, something that isn’t whole can still be safe. But it’s better to be whole, right?