adv.
Pronunciation: ə - ' m ā n
Function: adverb
Date: 1540
1 : with all one's might <the soul strives amain to live and work ― R. W. Emerson>
2 archaic a : at full speed b : in great haste
3 archaic : to a high degree : EXCEEDINGLY <they whom I favour thrive in wealth amain ― John Milton>