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Nēleus (dissyl.), ĕi and ĕos, m.,  =  Νηλευς, a son of Neptune and the nymph Tyro, a king of Pylos, the father of twelve sons who were all, except Nestor, killed by Hercules, Ov. M. 2, 689; cf. id. ib. 12, 552; Hyg.  Fab. 10.
Hence, 
- A.  Nēlēĭus, a, um, adj., Nelean: Neleia Nestoris arva, Ov. H. 1, 63: Pyliae Neleia mella senectae, i. e. the eloquence of Nestor, Sil. 15, 459.
Esp. as subst.: Nēlēĭus, i, m., the Neleian, i. e. Nestor: haec postquam dulci Neleius edidit ore, Ov. M. 12, 577. 
- B.  Nēlēus, a, um, adj., Nelean: Nelea Pylos, Ov. M. 6, 418; 12, 558.
 
- C.  Nēlīdes, ae, m., a male descendant of Nestor, a Nelide, Ov. M. 12, 553; Val. Fl. 1, 338.