jaculor
From LSJ
Τὸ νικᾶν αὐτὸν αὑτὸν πασῶν νικῶν πρώτη τε καὶ ἀρίστη. Τὸ δὲ ἡττᾶσθαι αὐτὸν ὑφ' ἑαυτοῦ πάντων αἴσχιστόν τε ἅμα καὶ κάκιστον. → Τo conquer yourself is the first and best victory of all, while to be conquered by yourself is of all the most shameful as well as evil
Latin > French (Gaffiot 2016)
jăcŭlor,¹¹ ātus sum, ārī, tr. (jaculum), tr., lancer, jeter : Quint. 8, 2, 5 ; Plin. 2, 92 ; Virg. En. 2, 276