[でていく(出て行く;出ていく);でてゆく(出て行く;出てゆく), deteiku ( dete iku ; dete iku ); deteyuku ( dete iku ; dete yuku )] (v5k-s) (い may be dropped, particularly in plain or rough language) to go out and away; to leave
(adv) by a considerable margin, Syn. far and away, out and away, Example:she was by far the smartest student; it was far and away the best meal he had ever eaten