Word Origin & History
ream (n.)
1356, from O.Fr. reyme, from Sp. resma, from Arabic rizmah "bundle" (of paper), from rasama "collect into a bundle." The Moors brought manufacture of cotton paper to Spain. Early variant rym (1470s) suggests a Du. influence (cf. Du. riem), probably during the time of Spanish Hapsburg control of Holland. Properly, 20 quires or 480 sheets, usually 500 or more to allow for waste. Of paper for printing, 21 and a half quires, or 516 sheets (printers' ream).