A Cowan...

Cowan is in Wicca, a non-witch, a person who has not been initiated into the Craft. The word is an old Scottish term for a mason who has learned the trade without serving an apprenticeship. Cowans generally are not allowed to attend circles, or esbats, the regular meetings of covens in which magical work imay be performed. However, cowans may be invited to attend seasonal festivals. ~ From Occult World