Naiad/ˈnaɪæd/ Definition 1 of 2Pro Tip 1/3Mythological Origin Originates from Greek and Roman mythology, reflects the naiads' role as guardians. Naiads were seen dancing under the moonlight to guard their waters. Pro Tip 2/3Literal Use Used for describing actual mythical entities, not humans or objects metaphorically. The ancient vase depicted a naiad next to a river god. Pro Tip 3/3Cultural Reference Might be used in literature or art to evoke a magical or fantastic atmosphere. Her voice had the enchanting melody of a naiad's song.