adv

• (archaic, literary) With all of one's might; mightily; forcefully, violently.
  "And in beholding how he [the cyclops Polyphemus] fed and belked vp againe His bloody vittels at his mouth, and vttred out amayne The clottred gobbets mixt with wyne, I [Odysseus] thus ſurmyſde: like lot Hangs ouer my head now, and I muſt alſo go to pot."
• (archaic) At full speed; also, in great haste.
  "At length the Danes beeing aſſayled on eche ſide, both a front before, and on their backes behinde, oppreſſed as it were wyth multitude, they threwe downe theyr weapons and fled amain."
• (British, dialectal) Out of control.
  "The waggonway lay near the Windmill Hills and went down the north side of the hills to the Rivir Tine, and at the Coal steath [= staithe] Mathew Gray lived. I was about hauf way down the bank when thur was two Waggons Coming after me Amain [= broken loose and running away]."
• (obsolete) Exceedingly; overmuch.
  "Riches are mine, Fortune is in my hand; They whom I favour thrive in wealth amain, While Virtue, Valour, Wiſdom ſit in want."

verb

• (transitive)
• (transitive)
• (intransitive, nautical) To lower the topsail in token of surrender; to yield.