Kikimora (Ukrainian and Russian: кикимора, IPA: [kʲɪˈkʲimərə]) is a legendary creature, a female house spirit in Slavic mythology. Her role in the house is usually juxtaposed with that of the domovoy. The kikimora can either be a "bad" or a "good" spirit, which will depend on the behavior of the homeowner. In more recent times an image of kikimora as a female swamp spirit had developed. Etymology. Most sources link the suffix -mora with the Proto-Slavic *morà ('nightly spirit, bad dream') and the Proto-Germanic *marōn (id.), as in the modern English nightmare.
https://en.wikipedia.org/wiki/Kikimora