Metemptosis

n. [ NL., from Gr. &unr_; beyond, after + &unr_; a falling upon, fr. &unr_; to fall in or upon; &unr_; in + &unr_; to fall. ] (Chron.) The suppression of a day in the calendar to prevent the date of the new moon being set a day too late, or the suppression of the bissextile day once in 134 years. The opposite to this is the proemptosis, or the addition of a day every 330 years, and another every 2, 400 years. [ 1913 Webster ]