Water spirits are mythical creatures found in folklore around the world. The crossword solutions for the term water spirit include Kelpie (6 letters), NIX (3 letters), UNDINE (6 letters), Nixie (5 letters), ARIEL (5 letters), NAIAD (5 letters), NYMPH (5 letters), and NEREID (6 letters). Kelpies are shapeshifting water horses from Scottish mythology, while Nixes are malevolent water spirits from Germanic folklore. Undines are elemental water spirits from European mythology, and Nixies are similar to Nixes but are more benevolent. ARIEL is a spirit of the air and water from Shakespeare's The Tempest, while Naiads are nymphs of freshwater bodies such as springs, rivers, and lakes. Nymphs are female nature spirits from Greek mythology, and Nereids are sea nymphs from Greek mythology.