a primary preposition; "fore", i.e. in front of, prior (figuratively, superior) to:--above, ago, before, or ever. In the comparative, it retains the same significations.
from the same as ὄπισθεν with enclitic of direction; to the back, i.e. aback (as adverb or preposition of time or place; or as noun):--after, back(-ward), (+ get) behind, + follow.