Definition of "puissant"

Awake remembrance of these valiant dead, / And with your puissant arm renew their feats.

1599, William Shakespeare, “The Life of Henry the Fift”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act I, scene ii]

For who can yet believe, though after loss,That all these puissant legions, whose exileHath emptied Heaven, shall fail to re-ascend,Self-raised, and repossess their native seat?

1667, John Milton, “Book I”, in Paradise Lost. […], London: […] [Samuel Simmons], […]; republished as Paradise Lost in Ten Books: […], London: Basil Montagu Pickering […], 1873,

I cried in a loud voice, "Long live the most puissant king of Lilliput!"

1726 October 28, [Jonathan Swift], Travels into Several Remote Nations of the World. […] [Gulliver’s Travels], volume I, London: […] Benj[amin] Motte, […], part I (A Voyage to Lilliput)

How comes all this, if there be not something puissant in whaling?

1851 November 14, Herman Melville, chapter 24, in Moby-Dick; or, The Whale, 1st American edition, New York, N.Y.: Harper & Brothers; London: Richard Bentley

‘O noble breast and all-puissant arms,Am I the cause, I the poor cause that menReproach you, saying all your force is gone?

1859, Alfred Tennyson, “Enid”, in Idylls of the King, London: Edward Moxon & Co., […], page 5

In fact the titles could be anything-or (with some of the most puissant) no title at all...

1961, Robert A. Heinlein, Stranger in a Strange Land, New York: Avon