What is the meaning of the word "amain"?

Definitions:

  1. at full speed copy to clipboard adverb
    • The word 'amain' is used here to mean at full speed, at full tilt, rapidly, vigorously. copy to clipboard
  2. at full speed copy to clipboard adverb
    • It's an oldfashioned word that means with all one's might or energy. copy to clipboard
  3. at full speed copy to clipboard adverb
    • It's often used to describe the movement of something that's going very fast, like a car driving at full speed. copy to clipboard
  4. at full speed copy to clipboard adverb
    • In general, this word is used to describe something that's happening quickly or with a lot of energy. copy to clipboard
  5. at full speed copy to clipboard adverb
    • It's a word that can be used to add emphasis to a sentence, to make it sound more dramatic or urgent. copy to clipboard
  6. with all your strength copy to clipboard adverb
    • The word 'amain' is used here to mean at full speed, at full tilt, rapidly, vigorously. copy to clipboard