What you have here isn’t pointfree or tacit programming at all — it’s partial application. They’re related, but not the same thing. In particular, I consider partial application a great deal more useful than pointfree programming, which often does nothing but making code hard to understand.
So, with this in mind, I suggest the name partial. Short, simple and correct.
EDIT: rereading that Wikipedia article I linked, apparently C++ calls this bind, which is even shorter and still makes sense.