διακηρυκεύεσθαι
From LSJ
Βοηθὸς ἴσθι τοῖς καλῶς εἰργασμένοις → Bonis inceptis addas auxilium tuum → Erweise dich als Helfer dem, was gut getan
Greek > English (Woodhouse Verbs Reversed)
(see also: διακηρυκεύομαι) communicate with by herald, negotiate by heralds