While I agree that translate is also used with languages, my dictionary (Oxford English) give the meaning as “…cause to move so that all its parts travel in the same direction, impart motion without rotation.” which seems like a very accurate description of what we’re trying to convey…
I think translate is a good term here as it is what is used in many other animation softwares. I’ve never come across any of your other suggestions in any animation tool, and I’ve used quite a few. I think we should as much as possible stick with conventional terms. Inventing own ones will only lead to confusion of the users.
Edit: ok, move could be used but I still thinks translate is a better term.