Common abbreviation in writing of CHRISTMAS: see X 6. Also Xmassing.

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1551.  in E. Lodge, Illustr. Brit. Hist. (1791), I. 145. From X’temmas next following.

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c. 1755.  in B. Ward, Hist. St. Edmund’s Coll. (1893), 303. In ye Xmas and Whitsuntide Vacations.

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1799.  Coleridge, Lett. to Southey, 24 Dec. My Xstmas Carol is a quaint performance. Ibid. (1801), Lett. to Southey, 31 Dec. On Xmas Day I breakfasted with Davy.

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1875.  S. G. Thomas, in R. W. Burnie, Mem. & Lett. (1891), 55. We are not going to have any Xmas festivities or visitors of any kind.

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1884.  Punch, 6 Dec., 268/1. He’s beginning Xmassing already.

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