Definition of "blotched"

The Dutch think no People are so much troubled with the Scurvy as they: But they mistake. There are more blotched Faces in one Town in England, than in the whole Dutch Province [...]

1743, anonymous author, A Description of Holland; or, the Present State of the United Provinces‎, London: J. & P. Knapton, page 52

The Blind Girl never knew that ceilings were discoloured, walls blotched and bare of plaster here and there, high crevices unstopped and widening every day, beams mouldering and tending downward.

1845, Charles Dickens, The Cricket on the Hearth, Chirp the Second

Frome turned away again, and taking up his razor stooped to catch the reflection of his stretched cheek in the blotched looking-glass above the wash-stand.

1911 October, Edith Wharton, chapter I, in Ethan Frome (The Scribner Library; SL8), New York, N.Y.: Charles Scribner’s Sons, page 41