| Full diacritics: Πρωτᾰγόρειος | Medium diacritics: Πρωταγόρειος | Low diacritics: Πρωταγόρειος | Capitals: ΠΡΩΤΑΓΟΡΕΙΟΣ |
| Transliteration A: Prōtagóreios | Transliteration B: Prōtagoreios | Transliteration C: Protagoreios | Beta Code: *prwtago/reios |
α, ον,
A of Protagoras, μέτρον Pl.Tht.162c; μῦθος ib. 164d.
