The term 'mythological maiden' can be summarized by the crossword solution 'NYMPH' (5 letters). A NYMPH is a female spirit in Greek and Roman mythology, often associated with nature. They are usually depicted as beautiful young women, and are often associated with water, forests, or mountains. Nymphs are often seen as carefree and mischievous, and are sometimes seen as the protectors of certain areas of nature.