De-mÿ'1, n.
n. [See DEMI.] 1. A size of paper next smaller than medium: that used for printing is about 22 by 18 inches; that used for writing is about 19 by 15 inches.
Sense 2. A half fellow at Magdalen College, Oxford. [Written also demi.]
He was elected into Magdalen College as a demy; a term by which that society denominates those which are elsewhere called “scholars,” young men, who partake of the founder’s benefaction, and succeed in their order to vacant fellowships. Johnson.