Naiad

The Naiads (Ancient Greek: Ναϊάδες) are a type of female spirit, or nymph, presiding over fountains, wells, springs, streams, brooks and other bodies of fresh water.

They are distinct from river gods, who embodied rivers, and the very ancient spirits that inhabited the still waters of marshes, ponds and lagoon-lakes, such as pre-Mycenaean Lerna in the Argolis.

Naiads were associated with fresh water, as the Oceanids were with saltwater and the Nereids specifically with the Mediterranean, but because the ancient Greeks thought of the world's waters as all one system, which percolated in from the sea in deep cavernous spaces within the earth, there was some overlap. Arethusa, the nymph of a spring, could make her way through subterranean flows from the Peloponnesus, to surface on the island of Sicily.

They were often the object of archaic local cults, worshipped as essential to humans. Boys and girls at coming-of-age ceremonies dedicated their childish locks to the local naiad of the spring. In places like Lerna their waters' ritual cleansings were credited with magical medical properties. Animals were ritually drowned there. Oracles might be situated by ancient springs.

Naiads could be dangerous: Hylas of the Argo's crew was lost when he was taken by naiads fascinated by his beauty (see illustration). The naiads were also known to exhibit jealous tendencies. Theocritus' story of naiad jealousy was that of a shepherd, Daphnis, who was the lover of Nomia or Echenais; Daphnis had on several occasions been unfaithful to Nomia and as revenge she permanently blinded him. Salmacis forced the youth Hermaphroditus into a carnal embrace and, when he sought to get away, fused with him.

Etymology
The Greek word is Ναϊάς (Naiás,  pronounced  [na͜a.i.ás]), plural Ναϊάδες (Naiades, [na͜a.i.ád.es]) It derives from νάειν (náein), "to flow", or νᾶμα (nãma), "running water". "Naiad" has several English pronunciations: /ˈneɪæd/, /ˈneɪəd/, /ˈnaɪæd/, /ˈnaɪəd/.