coryphaeus
From LSJ
φύγωμεν οὖν τὴν συνήθειαν ... ἄγχει τὸν ἄνθρωπον, τῆς ἀληθείας ἀποτρέπει → so let's stay away from the habitual ... it strangles us, turns us away from the truth
cŏryphaeus: i, m., = κορυφαῖος,
I a leader, chief, head: Epicureorum Zeno, Cic. N. D. 1, 21, 59.