Νηρηΐς · Nērēis — LSJ
daughter of Nereus, sea-nymph (opp. Ναϊάς, spring-nymph): mostly in pl. Νηρηΐδες, Il. 18.38, Pi. P. 11.2; title of play by Anaxandrides, Ath. 11.482c; Νηρεΐδες Alc. Supp. 8.11, Pi. I. (6)5.6, Q.S. 2.436, title of play by Aeschylus; Att. Νηρῇδες A. Fr. 174, S. OC 719 (lyr.), E. Andr. 1267, etc.; they were fifty in number, Hes. Th. 264, Pi. I. 6(5).6; their names are given, Il. 18.39 sqq., Hes. Th. 243 sqq.: rare in sg., gen. Νηρηΐδος S. Fr. 546, Alc.Com. 4 [not found].