Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Pēleus, ĕi and ĕos (gen. Peleos, Val. Fl. 1, 131; acc. Pelea, Hor. C. 3, 7, 17; voc. Peleu, Cat. 64, 26; Hor. A. P. 104; abl. Peleo, Cic. de Or. 3, 15, 57), m., = Πηλεύς, a king of Thessaly, son of Æacus, brother of Telamon, half-brother of Phocus, husband of Thetis, father of Achilles, and a sharer in the expedition of the Argonauts, Hyg. Fab. 14; Ov. M. 11, 221; 12, 365 sqq.; Cat. 64, 19; Hor. A. P. 96; Val. Fl. 1, 131.