ἐχέγγυος
εἰ δὲ τύχῃ τις ἔρδων, μελίφρον' αἰτίαν ῥοαῖσι Μοισᾶν ἐνέβαλε → if someone is successful in his deeds, he casts a cause for sweet thoughts into the streams of the Muses
English (LSJ)
ον,
A having given or able to give security, trustworthy, secure, δόμοι E.Med.387; λόγος Id.Andr.192; ποιεῖν δόσιν ἐ. Id.Ph. 759; ζημία ἐ. a penalty to be relied on (for the prevention of crime), Th.3.46; φρουρά D.H.2.37: Comp. -ώτερος Them.Or.26.321d: Sup. -ώτατος, μάρτυς Ath.9.398f; τὸ τῆς φρουρᾶς ἐ. security, Hdn.2.13.8; ἐ. πρὸς ἀσφάλειαν, εἰς σωτηρίαν, Plu.2.595 f, 1055b: c.gen., σωφροσύνης τρόπος οὗτος ἐ. AP10.56.11 (Pall.); ἀπορρήτων ἐ. safe to be entrusted with secrets, Plu.Publ.4; ἀξίωμα ἐ. πρὸς ἡγεμονίαν equal to command, Id.Per.37, cf. Hdn.3.13.4: c. inf., sufficiently strong to... Plu.Aem. 8, 2.923c; οὐκ ἐ. πρὸς τὸ ἀριθμεῖν not sufficient justification for counting... Longin. ap. Porph.Plot.20. II Pass., having received a pledge, secured against danger, ἱκέτης S.OC284.