Πέλοψ
From LSJ
τὸ ἓν καὶ τὸ ὂν πολλαχῶς λέγεται → the term being and the term one are used in many ways, one and being have various meanings, one and being have many senses
English (LSJ)
οπος, ὁ, Pelops, Il. 2.104, etc. : Adj. Πελόπιος, E.Fr.515, etc. ; Πελοπήϊος, A. R. 1.758, al. : pecul. fem. Πελοπηΐς, ΐδος, Call. Del.72, A.R.4.1570, Nic.Fr. 104.
Greek (Liddell-Scott)
Πέλοψ: -οπος, ὁ, (πελός, ὄψ) ὁ σκοτεινὴν ἔχων ὄψιν, μελαψὸς υἱὸς τοῦ Ταντάλου, ἐλθὼν ἐκ Λυδίας εἰς Πελοπόννησον ἧς καὶ ἀνεδείχθη ἡγεμὼν καὶ ἐξ αὐτοῦ ὠνομάσθη Πελοπόννησος, Ἰλ.