Definition of "freaking"

Thence home and visited Sir J. Minnes, who continues ill, but is something better, there he told me what a mad freaking fellow Sir Ellis Layton hath been, and is, and once at Antwerp was really mad.

1665 January 25, Samuel Pepys, Diary and Correspondence of Samuel Pepys‎, volume 4, Dodd, Mead & Company, published 1885, page 318

Suddenly his eyeballs are glazed with tears. “Mom, can you come get me,” he pleads. “Yeah, ’cause I freaking hate it here. […] ”

2021 April 27, Amanda Hess, “Inject the Vaccine Fan Fiction Directly Into My Veins”, in The New York Times‎

For the greater part of the time we were considerably above the sea, that took on a more vivid hue, more peacock freakings, for every yard we hung above it. Once in a way we got down to sea level, but only to mount again.

1926, Hildegarde Hawthorne, Corsica, the Surprising Island, page 216

[…] so through every conceivable shade of red, lilac and purple to a vinous maroon of the deepest dye, with freakings and freckles and all manner of fantastic adornments.

1937, My Garden, volume 10, page 234