calender (v.) Look up calender at Dictionary.com
"to pass through a calender," a machine which smooths and presses paper, cloth, etc., 1510s, from Middle French calandre, the machine name, from Medieval Latin calendra (see calender (n.)).
calender (n.) Look up calender at Dictionary.com
"machine consisting of close-set revolving cylinders or rolls which smooths and presses paper, cloth, etc.," 1510s (late 13c. in calenderer, surname of persons who use such a machine), from Old French calandreur, from Medieval Latin calendra "cloth-pressing machine," so called from the shape of the machine used, from Latin cylindrus, from Greek kylindros "roll, cylinder" (see cylinder).