Foxed (2)

Foxed: Old documents are foxed when they develop (often brown) discolorations. The causes of this foxing is not well understood. It might be caused by fungus or oxidation, and humidity is thought to be a risk factor.

Foxed: (British usage) To fox is to repair (shoes) or trim (clothing) with leather, presumably fox leather was employed for this purpose in the beginning.

She stitched Abe Lincoln's shirts and foxed his pants; she's the one who told him on the day he was elected, "They'll kill ye, Abe."

Their diplomas were foxed at the corners.