αὐτοπαθής
From LSJ
μήτε δίκην δικάσῃς πρίν ἀμφοῖν μῦθον ἀκούσῃς → do not give your judgement until you have heard a speech on both sides
English (LSJ)
ές,
A speaking from one's own feeling or experience. Adv. -θῶς Plb.3.12.1, Plu.Cat.Mi.54; instinctively, αὐ. φεύγομεν τὴν ἀλγηδόνα Epicur.Fr.66, etc. II Gramm., of pronouns, reflexive, opp. ἀλλοπαθεῖς, A.D.Pron.44.11; of verbs, opp. μεταβατικά, Synt. 281.15.