Ἀμφιπολίτης
From LSJ
ἀλλ᾽ ἀμφὶ τοῖς σφαλεῖσι μὴ 'ξ ἑκουσίας ὀργὴ πέπειρα → to those who err in judgment, not in will, anger is gentle | men's wrath is softened toward those who have erred unwittingly
Spanish (DGE)
-ου, ὁ anfipolita ét. de Anfípolis, Th.4.104, D.1.5, Call.Epigr.24.1, Arist.Pol.1303b2.
Russian (Dvoretsky)
Ἀμφιπολίτης: ου ὁ уроженец или житель Амфиполя Thuc., Xen.