ETYM Old Eng. agein, agayn, AS. ongegn, ongeán, against, again; on + geán, akin to German gegewn against, Icel. gegn. Related to Gainsay.
Anew; SYN. once again, once more, over again.
Another time, repeating
1. Abreast; opposite to; facing; towards; in this sense often preceded by over.
2. From an opposite direction so as to strike or come in contact with; in contact with; upon.
3. In opposition to, whether the opposition is of sentiment or of action; on the other side; counter to; in contrariety to; hence, adverse to.