The Collaborative International Dictionary
Douglas Harper's Etymology Dictionary
Usage examples of "childermas".
The man then right earnest asked the nun of which death the dead man was died and the nun answered him and said that he was died in Mona Island through bellycrab three year agone come Childermas and she prayed to God the Allruthful to have his dear soul in his undeathliness.
On Wednesday, 28 December, Childermas or Holy Innocents' Day, the great new church was consecrated, but he could not attend this fulfilment of his life's ambition.