neuter of πρῶτος as adverb (with or without ὁ); firstly (in time, place, order, or importance):--before, at the beginning, chiefly (at, at the) first (of all).
a primary verb; to look at (literally or figuratively):--behold, beware, lie, look (on, to), perceive, regard, see, sight, take heed. Compare ὀπτάνομαι.