ἐπιβοᾶσθαι
From LSJ
Ὁ μὲν βίος βραχύς, ἡ δὲ τέχνη μακρή, ὁ δὲ καιρὸς ὀξύς, ἡ δὲ πεῖρα σφαλερή, ἡ δὲ κρίσις χαλεπή → Life is short, art long, opportunity fleeting, experience misleading and judgment difficult
Greek > English (Woodhouse Verbs Reversed)
(see also ἐπιβοάω): invoke, call on, call to aid, call upon