The Element Encyclopedia of Witchcraft: The Complete A-Z for the Entire Magical World - Judika Illes 2005
Lauma (Lithuanian: Laumé; Latvian: Laūme) are Baltic fairies. The entourage of the witch-goddess Ragana, they are most frequently encountered bathing in springs at night and spinning and weaving in the moonlight—significant activities as they link the worlds of Fate Fairies with those of the Nature-spirit Fairies.
Originally Lauma were guardians of the poor and protectors of orphan children, however post-Christianity they have developed hag-like features and are sometimes described in terms similar to Baba Yaga. (See DIVINE WITCH: Baba Yaga, Ragana.)