A repeated motif in Greek mythology depicts a woman being "abducted" by some god or hero. Persephone by Hades; Europa and Ganymede by Zeus; Helen by Paris; Helen by Theseus; etc...
I see this named alternatively as a "rape" and an "abduction", and the two uses seem almost interchangeable. But is there any consensus among scholars as to whether one or the other was meant to be implied, or both?
It's because the word "rape" used to have "abduction" as one of its meanings. This was in keeping with its derivation: it comes from Latin raptus "snatch, seizure, capture", whence also English rapture "seizing, snatching away", and raptor "creature that snatches away (its prey)". It's also why rapine is a synonym for plunder.
The word happens to have hung around. This is partly, I guess, because of certain popular treatments that use "rape" in their title, like Pope's Rape of the Lock, or Latin titles like Claudian's De raptu Proserpinae and Colluthus's De raptu Helenae.
Many or most of the mythological cases do involve actual rape in the modern sense too, so the phrases aren't usually misnomers. There are some ambiguous cases, though, because of stories e.g. that Helen went off with Paris willingly. Probably most present-day scholars would tend to avoid using the word "rape" to avoid imposing the more specific modern meaning, but I'm sure there are plenty of exceptions.