Dictionary entry

Πέτρος

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

Πέτρος, -ου, ὁ (i.e. a stone, v.s. πέτρα, Κηφᾶς),

Simon Peter, the Apostle: Mt 4:1810:2, Mk 3:16, Lk 5:8, Jo 1:41, 43, al.