In Scandinavia the klok gumma ("wise woman") or klok gubbe ("wise man"), and collectively De kloka ("The Wise ones"), as they were known in Swedish, were usually elder members of the community who acted as folk healers and midwives.
Many Norwegian and Danish practitioners of folk magic and medicine would have a copy of the "Svartebok" (or "black book"), a tome that, according to some, was written by Cyprianus, that is, the Saint of Necromancers, Cyprian of Antioch, and by others to have been the Sixth and Seventh books of the Bible (or "Books of Moses" as the Pentateuch is known in Denmark and Norway) that were left out of the official Old Testament by the learned so that the common folk would not learn the knowledge held within the text.
(A formulary found in a "black book" recovered from a farm near Elverum contains many formulas such as one for a toothache that commands the user of the charm to write the words "Agerin, Nagerin, Vagerin, Jagerin, Ipagerin, Sipia" on a piece of paper using a new pen, cut the paper into three small pieces, place the first piece onto the tooth in the evening and in the morning spit the piece into the fire. This should then be repeated with the other pieces).
Well there you go, everybody get rid of your dental insurance.