• WordNet 3.6
    • adv amain with all your strength "he pulled the ropes amain"
    • adv amain at full speed; with great haste "the children ran down the hill amain"
    • ***
Webster's Revised Unabridged Dictionary
    • Amain At full speed; in great haste; also, at once. "They fled amain ."
    • v. i amain (Naut) To lower the topsail, in token of surrender; to yield.
    • v. t Amain (Naut) To lower, as a sail, a yard, etc.
    • Amain With might; with full force; vigorously; violently; exceedingly. "They on the hill, which were not yet come to blows, perceiving the fewness of their enemies, came down amain .""That striping giant, ill-bred and scoffing, shouts amain ."
    • ***
Century Dictionary and Cyclopedia
    • amain With force, strength, or violence; violently; furiously; suddenly; at full speed; hastily.
    • amain To lead; conduct; manage.
    • amain To lower (a sail), especially the topsail.
    • amain To lower; abate.
    • amain To lower the topsail or one's flag, in token of yielding; yield; surrender.
    • ***
Chambers's Twentieth Century Dictionary
    • adv Amain a-mān′ with main force or strength: violently: at full speed: exceedingly.
    • ***


Webster's Revised Unabridged Dictionary
Pref. a-, + main,. See 2d Main (n.)
Chambers's Twentieth Century Dictionary
Pfx. a- = on, and Main.


In literature:

How the silly things throb, throb amain!
"The Uncollected Writings of Thomas de Quincey, Vol. 2" by Thomas de Quincey
Yet through Ustiano, and out on the plain, Horse, foot, and dragoons, are defiling amain.
"Thomas Davis, Selections from his Prose and Poetry" by Thomas Davis
Some make ready to march afoot over the plains; some, mounted on tall horses, ride amain in clouds of dust.
"The Aeneid of Virgil" by Virgil
His bloodhounds twain he called amain, and straightway gave her chase; Was never seen in forest green, so fierce, so fleet a race!
"Rookwood" by William Harrison Ainsworth
Is the word "amain" in use nowadays?
"Journeys Through Bookland, Vol. 10" by Charles Herbert Sylvester
The rink flourished amain, and everybody, even Old Dutcher, was highly pleased.
"Lucy Maud Montgomery Short Stories, 1902 to 1903" by Lucy Maud Montgomery
The flood-gates once opened, the water poured in amain.
"The Atlantic Monthly, Volume 14, No. 85, November, 1864" by Various
How the silly things throb, throb amain!
"The Old Man of the Mountain, The Lovecharm and Pietro of Abano" by Ludwig Tieck
No sooner had the lads scampered away, making the vast grove ring amain to their acclaims, than I began my preparations.
"Fibble, D. D." by Irvin Shrewsbury Cobb
From every side the avenging cranes, amain, Throng, to o'erwhelm this terror of the plain.
"The Minstrel; or the Progress of Genius" by James Beattie
See, how he runs amain!
"A History of English Literature" by George Saintsbury
Having but little time, as I say, we scaled the hill amain and wandered briskly through this labyrinth of antiquities.
"A Little Tour in France" by Henry James
The Summer time is perillous if ye digge, because the sap fills amaine.
"A New Orchard And Garden" by William Lawson
Dieu les amaine a sauuete!
"Dialogues in French and English" by William Caxton
How cam'st thou hither (then amaine he cries) To kil my heart?
"Seven Minor Epics of the English Renaissance (1596-1624)" by Dunstan Gale
Their numbers increased amain.
"La Sorcière: The Witch of the Middle Ages" by Jules Michelet
Naked and pale he rides amain Upon a naked steed.
"The Irish Fairy Book" by Various
The heresy is spreading amain.
"The Iron Pincers" by Eugène Sue
So Sir Blyant raced for his castle and he rushed forward beneath the walls of the castle with those two knights thundering after him amain.
"The Story of Sir Launcelot and His Companions" by Howard Pyle
But when I touch'd the lifeless clay, The blood gush'd out amain!
"English Songs and Ballads" by Various

In poetry:

To rise by others' fall
I deem a losing gain;
All states with others' ruin built,
To ruin run amain.
"Content and Rich" by Robert Southwell
THRESH, thresh, ye oxen, well,
Yea, thresh for us amain;
The straw is yours — to sell :
We'll keep the golden grain.
"Egyptian Lyrics" by E J Rupert Atkinson
Burrow amain;
Dig like a mole;
Fill every vein
With half-burnt coal;
Puff the keen dust about,
And all to choke me out.
"The Asthmatic To The Satan That Binds Him" by George MacDonald
One glance at sunny fields of grain,
One shout of child at play—
A merry melody drives amain
The one-toned chant away!
"The Disciple" by George MacDonald
The youth did ride, and soon did meet
John coming back amain;
Whom in a trice he tried to stop,
By catching at his rein;
"The Diverting History Of John Gilpin, Showing How He Went Farther Than He Intended, And Came Safe Ho" by William Cowper
The broad red sun went deeply down,
And night came up amain,
As if the world's wide day were lost,
Ne'er to return again.
"Lines Written At Farley" by Samuel Bamford