schism (n.)
— George Atherton (@notrehta) July 21, 2018
late 14c., scisme, … from Old French scisme, cisme "a cleft, split" (12c.), from Church Latin schisma, … Spelling restored 16c., but pronunciation unchanged. Often in reference to the Great Schism (1378-1417) in the Western Church. https://t.co/JdAil3ywom pic.twitter.com/va1jhnFnek
schism [SIZ-uhm, SKIZ-] … a split within the church, from Old French scisme, cisme "a cleft, split" (12c.)
— George Atherton (@notrehta) July 21, 2018
“… The pronunciation /skɪz(ə)m/, though widely regarded as incorrect, is now frequently used for this word and its derivatives both in the UK and in North America.” —OED pic.twitter.com/muhSh5PKtz