All languages I know of have four basic directions: left, right, backwards and forwards. Are there any that don’t?
Maybe you could have just three: forwards, backwards-left and backwards-rigth? Or more then four, maybe with distinct names for some or all of the four in-between the common ones
ana and kata for four-dimensional spaces too.
From the Greek for above and below, and also not in the general use. But I really appreciate seeing them in this discussion.