LSJ
II
public examination of the conduct of officials, held on the expiration of their term of office (dist. fr. λόγος ‘rendering of accounts’, οὔτε χρήματα διαχειρίσας τῆς πόλεως δίδωμι λόγον αὐτῶν, οὔτε ἀρχὴν ἄρξας οὐδεμίαν εὐθύνας ὑπέχω αὐτῆς Lys. 24.26; λόγον διδόντων τῶν χρημάτων . . καὶ εὐθύνας διδόντων IG 1(2).91.27), used in sg. by Ar. V. 571, Lys. 10.27, al.; ἡ εὔ. βλάβη τις δικαία ἐστίν Arist. Rh. 1411b20: more freq. in pl., IG l.c., Ar. Eq. 825 (anap.), etc.; πρεσβείας εὔθυναι an account of oneʼs embassage, D. 19.82; [ τῆς στρατηγίας] ἔμʼ ἀπαιτεῖς εὐθύνας Id. 18.245; opp. εὐθύνας διδόναι Ar. Pax 1187, And. 1.90; ὑποσχεῖν Lys. 30.3; κατηγορεῖν [τινος] εἰς τὰς εὐ. Antipho 6.43; τὰς εὐ. κατηγορεῖν, ἐπὶ τὰς εὐθύνας ἐλθεῖν, D. 19.81, 2; εὔθυνάν τινι ἐμβαλέσθαι Arist. Ath. 48.4, cf. Decr.ib. 39.6; εὐθύνας or εὔθυναν ὀφλεῖν to be convicted, or accused, of malversation, And. 1.73, Lys. 10.27; κλοπῆς ἕνεκα Aeschin. 3.10; εὐθύνας ἀποφυγεῖν, διαφυγεῖν, to be acquitted thereof, Pl. Lg. 946d, 947e; τῆς εὐθύνης ἀπολύειν τινά Ar. V. 571: metaph., τὰς εὐ. τὰς τοῦ βίου the accounts rendered of your life, Alex. 262.8, cf. Ph. 2.214, al. (On the accent see Hdn.Gr. 1.257.37: the later form εὐθύνη, nom. pl. εὐθῦναι is sts. found in codd. of early writers, as Lys. 10.27, Pl. Prt. 326e, but shd. prob. be corrected.)
4
Att., accuse falsely or spitefully, so as to extort hushmoney, blackmail, σ. καὶ ταράττων Ar. Eq. 840, cf. Telecl. 2; ἔσειον τοὺς παχεῖς καὶ πλουσίους Ar. Pax 639; ἑτέρους τῶν ὑπευθύνων ἔσειε καὶ ἐσυκοφάντει Antipho 6.43, cf. BGU 428.9 (ii A.D.); so perh. σείειν κατʼ ἀγοράν Alciphr. 3.70 (s. v.l.):— Pass., to be extorted, POxy. 1252r.37 (iii A.D.).
to be a συκοφάντης 1, παππῷος ὁ βίος συκοφαντεῖν ἐστί μοι Ar. Av. 1452, cf. Ach. 828, Ec. 562, al., Lys. 22.1, Isoc. 15.23, 21.5, al., D. 53.1, 55.1, al., Men. Epit. 1, al.; ς κατʼ ἀγοράν Diph. 32.16: c. acc. pers., prosecute vexatiously, blackmail, συκοφαντεῖς τοὺς ξένους; Ar. Av. 1431, cf. V. 1096 (lyr.); τοὺς συμμάχους Isoc. 15.318; ἑτέρους ἔσειε καὶ ἐσυκοφάντει Antipho 6.43; σ. τοὺς τὰς οὐσίας ἔχοντας Arist. Pol. 1304b22, cf. Lys. 19.9 ( Pass.); συκοφαντοῦμαι νῦν ὑπʼ αὐτῶν ἀδίκως Id. Fr. 43, cf. X. Oec. 11.21, Thphr. Char. 23.4; ἰδόντες . . σε ὑπὸ Δημέου συκοφαντούμενον PMich.Zen. 57.2 (iii B.C.), cf. PCair.Zen. 212.4, 628.3 (iii B.C.), CPR 232.3 (ii/iii A.D.); freq. of blackmail by officials, PTeb. 43.26, 789.21 (ii B.C.), UPZ 112i4, 113.10, 16 (ii B.C.); συκοφαντῆσαι ἡμᾶς καὶ διασεῖσαι BGU 1756.11 (i B.C.); μηδένα διασείσητε μηδὲ συκοφαντήσητε Ev.Luc. 3.14, cf. CPR 238.6 (ii A.D.), PFlor. 382.57 (iii A.D.); τοῦ συκοφαντῆσαι ἡμᾶς to seek occasion against us, oppress us, LXX Ge. 43.18; ὁ συκοφαντῶν πένητα ib. Pr. 14.31; accuse falsely, ταυτὶ γὰρ συκοφαντεῖσθαι τὸν Ἕκτορα ὑπὸ τοῦ Ὁμήρου that is a false charge brought against Hector by Homer, Philostr. Her. 12b; κύριε Γάϊε, συκοφαντούμεθα Ph. 2.598, cf. 1.145, D.C. 38.28, al.: c. acc. et gen., τὸν θεὸν ὀλιγωρίας Ael. Fr. 40: c. acc. rei, denounce as contraband, Μεγαρέων τὰ χλανίσκια Ar. Ach. 519; extort by false charges or threats, τριάκοντα μνᾶς Lys. 26.24; εἴ τινός τι ἐσυκοφάντησα, ἀποδίδωμι τετραπλοῦν Ev.Luc. 19.8: abs., Isoc. 18.10.
liable to give account for oneʼs administration of an office, responsible, ὑ. ἀρχή, opp. μουναρχίη, Hdt. 3.80; τραχὺς μόναρχος, οὐδʼ ὑ. κρατεῖ A. Pr. 326, cf. Ch. 715; οὐχ ὑπεύθυνος πόλει Id. Pers. 213; ὑ. τὴν παραίνεσιν ἔχοντας πρὸς ἀνεύθυνον τὴν ὑμετέραν ἀκρόασιν we who advise are responsible, while you who hear are irresponsible, Th. 3.43; οἱ ὑ., at Athens, magistrates who, on quitting office, had to give an account of their administration to examiners ( εὔθυνοι) and (if they had handled public funds) to auditors ( λογισταί), Ar. Eq. 259, V. 102, Antipho 6.43, etc.; ὁπόσοι ἄρχοντες ἐν μιᾷ πόλει γεγένηνται, ὑ. εἰσιν And. 4.30; ἄνδρες λογισταὶ τῶν ὑ. χορῶν, addressed to the spectators, who were ‘auditors’ and judges of the performance, Eup. 223.