calender (v.)youdaoicibaDictYouDict[calender 词源字典]
"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 etymology, calender origin, 英语词源]
calender (n.)youdaoicibaDictYouDict
"machine which smooths and presses paper, cloth, etc.," 1510s (late 13c. in surnames of persons who use such a machine), 1510s, 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).