Definition of "forwrought"

[...] Arthur; a fearful night it was: there was a sough in the air, a sound drawing nigh like that of a host marching:- — but you're looking pale and forwrought, man; is any thing ailing ye?

1829, John Carne, Stratton Hill: A Tale of the Civil Wars - Volume 1 - Page 131

And Æthelwold sat within the ham, with the men that to him had bowed, and he had forwrought [obstructed] all the gates in, and said that he would either there live or there lie. Thereupon rode the ætheling on night away, and sought the [...]

1881, Grant Allen, Early Britain: Anglo-Saxon Britain