Definition of "roky"

They walked around in the roky damp, in silence.

1993, Annie Proulx, The Shipping News, Scribner, published 1999, page 40

[…] scaly, and frightfully roky bar.

1877, Van Nostrand's Eclectic Engineering Magazine, page 469

then elongate and “open-out,” producing “roky” billets and blooms. When the cracks are from top to bottom, i.e. longitudinal, it is usually because cooling, after the ingot has been taken out of the mould, has been uneven.

1942, Eric N. Simons, Edwin Gregory, Steel Manufacture Simply Explained