1. a witch; a woman claiming or popularly believed to possess magical powers and practice sorcery.
2. a woman considered to be spiteful or overbearing.
3. Informal: a woman or girl considered bewitching.
4. one particularly skilled or competent at one’s craft.
Etymology: Russian, ведьма, literally “the one who knows”, from Old Slavic вѣдъ “to know”.