Columbanus Hibernus, De Poenitentiarum Mensura Taxanda Liber

XVIII. Si quis maleficio suo aliquem perdiderit, tribus annis poeniteat cum pane et aqua per mensu- ram, et tribus aliis annis abstineat se a vino et car- nibus, et tunc demum in septimo anno recipitur in communionem. Si autem pro amore quis maleficus sit, et neminem perdiderit, annum integrum cum pane et aqua, clericus ille poeniteat, laicus dimi- dium, diaconus duos, sacerdos tres, maxime si per boc mulieris partum quisquam deceperit : ideo sex quadragesimas unusquisque insuper augeat, ne ho- micidii reus sit.

XVIII. If anyone has destroyed someone by his sorcery, let him do penance for three years on bread and water by measure, and for three more years abstain from wine and meat, and then at last, in the seventh year, he is received into communion. But if anyone is a sorcerer for the sake of love and has destroyed no one, let him do penance on bread and water a whole year if a cleric, a layman half [a year], a deacon two [years], a priest three; especially if anyone has by this means cheated a woman of her offspring: for that reason let each one add six forty-day periods besides, lest he be guilty of homicide.