συνευφραίνεσθαι

From LSJ

τὸν τεθνηκότα μὴ κακολογεῖν → do not speak ill of the dead, speak no ill of the dead (Chilon the Spartan)

Source

Greek > English (Woodhouse Verbs Reversed)

(see also: συνευφραίνομαι) rejoice with another, sympathise with in joy, sympathise with