flatted

Verb

flat (third-person singular simple present flats, present participle flatting, simple past and past participle flatted)

1. (slang) To make a flat call; to call without raising.
2. (intransitive) To become flat or flattened; to sink or fall to an even surface.
3. (colloquial, intransitive) To fall from the pitch.
4. (transitive) To depress in tone, as a musical note; especially, to lower in pitch by half a tone.
5. (dated, transitive) To make flat; to flatten; to level.
   • And thus thoſe Forts vvhich vvere erected to defend the Crovvne, firſt offended the King, ſome fevv vvhereof as he recouered, he flatted to the ground, and vviſhed the other no higher vvalls; ſtill ſvvearing by Gods Birth (his vſuall Oath) hee vvould not ſlightly bee vnſeated of his Crovvne, and...1611, Iohn Speed [i.e., John Speed], “Stephen, the Two and Fortieth Monarch of the English-men: His Raigne, Acts, and Issue”, in The History of Great Britaine under the Conquests of yͤ Romans...
6. (dated, transitive) To render dull, insipid, or spiritless; to depress.
   • Passions are allayed, appetites are flatted.a. 1678 (date written), Isaac Barrow, “(please specify the chapter name or sermon number)”, in The Works of Dr. Isaac Barrow. […], volume (please specify |volume=I to VII), London: A[braham] J[ohn]...

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