FOOLSCAP

foolscap

(noun) a size of paper used especially in Britain

Source: WordNet® 3.1

Etymology

Probably from a watermark of a fool's cap.

Noun

foolscap (plural foolscaps)

Alternative form of fool's cap

(strictly) Writing paper sheets measuring 13.25 x 16.5 inches

(more usually) Such a sheet folded or cut in half, thus approximately 8 x 13.25 inches.

Printing paper measuring 13.5 inches x 17 inches.

Source: Wiktionary

Fools"cap`, n. Etym: [So called from the watermark of a fool's cap and bells used by old paper makers. See Fool's cap, under Fool.]

Definition: A writing paper made in sheets, ordinarily 16 x 13 inches, and folded so as to make a page 13 x 8 inches. See Paper.

Source: Webster’s Unabridged Dictionary 1913 Edition