1836 E. Baines (new ed.) II. 677 There is an ancient celebration here on Mid-Lent, or, as it is called, ‘Simbling Sunday’, when large cakes, with the name of ‘Simblings’, are sold generally in the town of Bury.
?1857 J. Scholes viii. 43 It wur one ov his famuly, e sed, ut furst inventud simblins, un startud Simblin Sundi.
1903 4 Apr. p. lii/1 Mothering Sunday in Bury was called Simblin Sunday.