- any of various sizes of writing paper; esp., in the U.S., a size measuring 13 by 16 inches
- fool's cap
Origin of foolscapso called from the former watermark, a fool's head and cap
- Chiefly British A sheet of writing or printing paper measuring about 13 by 16 inches.
- A fool's cap.
Origin of foolscapFrom the watermark of a fool's cap with bells originally used for this paper.
OriginSee also: fool's cap
Probably from a watermark of a fool's cap.